v3.25.4
Investment Risks
Oct. 31, 2025
Innovator Growth Accelerated Plus ETF - January | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] You could lose money by investing in the Fund.
Innovator Growth Accelerated Plus ETF - January | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator Growth Accelerated Plus ETF - January | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator Growth Accelerated Plus ETF - January | Defined Outcome Strategy Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period.

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are three times those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the

Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are three times the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the

Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator Growth Accelerated Plus ETF - January | Derivatives Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on

the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies

and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator Growth Accelerated Plus ETF - January | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any

direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator Growth Accelerated Plus ETF - January | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator Growth Accelerated Plus ETF - January | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures

and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator Growth Accelerated Plus ETF - January | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator Growth Accelerated Plus ETF - January | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are

unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator Growth Accelerated Plus ETF - January | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC

status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator Growth Accelerated Plus ETF - January | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator U.S. Equity Accelerated 9 Buffer ETF - January | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator U.S. Equity Accelerated 9 Buffer ETF - January | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator U.S. Equity Accelerated 9 Buffer ETF - January | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator U.S. Equity Accelerated 9 Buffer ETF - January | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period.

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Buffered Loss Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide buffer protection against Underlying ETF losses if the Underlying ETF’s share price decreases by 9% or less over the duration of the Outcome Period. A shareholder may lose their entire investment. The Fund’s strategy seeks to provide the sought-after protection of the Buffer if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the Buffer that the Fund seeks to provide may not be available. The Fund does not provide principal protection or non-principal protection, and an investor may experience significant losses on its investment, including the loss of its entire investment. To the extent the Fund invests directly in the Underlying ETF, the Buffer will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case shareholders may not receive the sought-after downside protection of the Buffer.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are twice those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed

the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are twice the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator U.S. Equity Accelerated 9 Buffer ETF - January | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues

that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator U.S. Equity Accelerated 9 Buffer ETF - January | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s

expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator U.S. Equity Accelerated 9 Buffer ETF - January | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator U.S. Equity Accelerated 9 Buffer ETF - January | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures

and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator U.S. Equity Accelerated 9 Buffer ETF - January | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator U.S. Equity Accelerated 9 Buffer ETF - January | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are

unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator U.S. Equity Accelerated 9 Buffer ETF - January | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions

could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator U.S. Equity Accelerated 9 Buffer ETF - January | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator U.S. Equity Accelerated Plus ETF - January | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator U.S. Equity Accelerated Plus ETF - January | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator U.S. Equity Accelerated Plus ETF - January | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator U.S. Equity Accelerated Plus ETF - January | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period.

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are three times those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce

the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are three times the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator U.S. Equity Accelerated Plus ETF - January | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance

of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of

option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator U.S. Equity Accelerated Plus ETF - January | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator U.S. Equity Accelerated Plus ETF - January | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator U.S. Equity Accelerated Plus ETF - January | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator U.S. Equity Accelerated Plus ETF - January | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator U.S. Equity Accelerated Plus ETF - January | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator U.S. Equity Accelerated Plus ETF - January | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income

for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator U.S. Equity Accelerated Plus ETF - January | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator Growth Accelerated Plus ETF - April | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator Growth Accelerated Plus ETF - April | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator Growth Accelerated Plus ETF - April | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator Growth Accelerated Plus ETF - April | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period.

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are three times those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively manage its portfolio such that any transaction fees incurred by the Fund in connection with

the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are three times the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator Growth Accelerated Plus ETF - April | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant

losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator Growth Accelerated Plus ETF - April | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator Growth Accelerated Plus ETF - April | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator Growth Accelerated Plus ETF - April | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator Growth Accelerated Plus ETF - April | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator Growth Accelerated Plus ETF - April | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being

taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator Growth Accelerated Plus ETF - April | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument

for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator Growth Accelerated Plus ETF - April | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator U.S. Equity Accelerated 9 Buffer ETF - April | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator U.S. Equity Accelerated 9 Buffer ETF - April | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator U.S. Equity Accelerated 9 Buffer ETF - April | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator U.S. Equity Accelerated 9 Buffer ETF - April | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or

other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period.

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Buffered Loss Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide buffer protection against Underlying ETF losses if the Underlying ETF’s share price decreases by 9% or less over the duration of the Outcome Period. A shareholder may lose their entire investment. The Fund’s strategy seeks to provide the sought-after protection of the Buffer if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the Buffer that the Fund seeks to provide may not be available. The Fund does not provide principal protection or non-principal protection, and an investor may experience significant losses on its investment, including the loss of its entire investment. To the extent the Fund invests directly in the Underlying ETF, the Buffer will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case shareholders may not receive the sought-after downside protection of the Buffer.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are twice those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce

the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are twice the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator U.S. Equity Accelerated 9 Buffer ETF - April | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund

might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of

option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator U.S. Equity Accelerated 9 Buffer ETF - April | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator U.S. Equity Accelerated 9 Buffer ETF - April | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator U.S. Equity Accelerated 9 Buffer ETF - April | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator U.S. Equity Accelerated 9 Buffer ETF - April | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator U.S. Equity Accelerated 9 Buffer ETF - April | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator U.S. Equity Accelerated 9 Buffer ETF - April | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a

RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator U.S. Equity Accelerated 9 Buffer ETF - April | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator U.S. Equity Accelerated Plus ETF - April | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator U.S. Equity Accelerated Plus ETF - April | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator U.S. Equity Accelerated Plus ETF - April | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator U.S. Equity Accelerated Plus ETF - April | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period.

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced

an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are three times those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are three times the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator U.S. Equity Accelerated Plus ETF - April | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment

portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may

obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator U.S. Equity Accelerated Plus ETF - April | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator U.S. Equity Accelerated Plus ETF - April | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator U.S. Equity Accelerated Plus ETF - April | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator U.S. Equity Accelerated Plus ETF - April | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator U.S. Equity Accelerated Plus ETF - April | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of

the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator U.S. Equity Accelerated Plus ETF - April | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or

losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator U.S. Equity Accelerated Plus ETF - April | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator Growth Accelerated Plus ETF - July | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator Growth Accelerated Plus ETF - July | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator Growth Accelerated Plus ETF - July | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator Growth Accelerated Plus ETF - July | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period.

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are three times those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed

the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are three times the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator Growth Accelerated Plus ETF - July | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction

entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time

remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator Growth Accelerated Plus ETF - July | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks

Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator Growth Accelerated Plus ETF - July | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator Growth Accelerated Plus ETF - July | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional

and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator Growth Accelerated Plus ETF - July | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator Growth Accelerated Plus ETF - July | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator Growth Accelerated Plus ETF - July | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must

distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator Growth Accelerated Plus ETF - July | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator U.S. Equity Accelerated 9 Buffer ETF - July | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator U.S. Equity Accelerated 9 Buffer ETF - July | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator U.S. Equity Accelerated 9 Buffer ETF - July | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator U.S. Equity Accelerated 9 Buffer ETF - July | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period.

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Buffered Loss Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide buffer protection against Underlying ETF losses if the Underlying ETF’s share price decreases by 9% or less over the duration of the Outcome Period. A shareholder may lose their entire investment. The Fund’s strategy seeks to provide the sought-after protection of the Buffer if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the Buffer that the Fund seeks to provide may not be available. The Fund does not provide principal protection or non-principal protection, and an investor may experience significant losses on its investment, including the loss of its entire investment. To the extent the Fund invests directly in the Underlying ETF, the Buffer will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case shareholders may not receive the sought-after downside protection of the Buffer.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are twice those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively

manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are twice the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator U.S. Equity Accelerated 9 Buffer ETF - July | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the

Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator U.S. Equity Accelerated 9 Buffer ETF - July | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting

Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator U.S. Equity Accelerated 9 Buffer ETF - July | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator U.S. Equity Accelerated 9 Buffer ETF - July | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services

unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator U.S. Equity Accelerated 9 Buffer ETF - July | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator U.S. Equity Accelerated 9 Buffer ETF - July | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely

to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator U.S. Equity Accelerated 9 Buffer ETF - July | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes

subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator U.S. Equity Accelerated 9 Buffer ETF - July | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator U.S. Equity Accelerated Plus ETF - July | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator U.S. Equity Accelerated Plus ETF - July | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator U.S. Equity Accelerated Plus ETF - July | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator U.S. Equity Accelerated Plus ETF - July | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period.

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are three times those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the

Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are three times the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the

Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator U.S. Equity Accelerated Plus ETF - July | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If

a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the

reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator U.S. Equity Accelerated Plus ETF - July | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in

the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator U.S. Equity Accelerated Plus ETF - July | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator U.S. Equity Accelerated Plus ETF - July | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s

digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator U.S. Equity Accelerated Plus ETF - July | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator U.S. Equity Accelerated Plus ETF - July | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely

to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator U.S. Equity Accelerated Plus ETF - July | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC

status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator U.S. Equity Accelerated Plus ETF - July | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator Growth Accelerated Plus ETF - October | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator Growth Accelerated Plus ETF - October | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator Growth Accelerated Plus ETF - October | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator Growth Accelerated Plus ETF - October | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period.

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are three times those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire

at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are three times the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator Growth Accelerated Plus ETF - October | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund

might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of

option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator Growth Accelerated Plus ETF - October | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator Growth Accelerated Plus ETF - October | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator Growth Accelerated Plus ETF - October | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator Growth Accelerated Plus ETF - October | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator Growth Accelerated Plus ETF - October | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator Growth Accelerated Plus ETF - October | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund

must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator Growth Accelerated Plus ETF - October | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator U.S. Equity Accelerated 9 Buffer ETF - October | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator U.S. Equity Accelerated 9 Buffer ETF - October | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator U.S. Equity Accelerated 9 Buffer ETF - October | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator U.S. Equity Accelerated 9 Buffer ETF - October | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period.

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Buffered Loss Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide buffer protection against Underlying ETF losses if the Underlying ETF’s share price decreases by 9% or less over the duration of the Outcome Period. A shareholder may lose their entire investment. The Fund’s strategy seeks to provide the sought-after protection of the Buffer if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the Buffer that the Fund seeks to provide may not be available. The Fund does not provide principal protection or non-principal protection, and an investor may experience significant losses on its investment, including the loss of its entire investment. To the extent the Fund invests directly in the Underlying ETF, the Buffer will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case shareholders may not receive the sought-after downside protection of the Buffer.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are twice those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively

manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are twice the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator U.S. Equity Accelerated 9 Buffer ETF - October | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant

losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator U.S. Equity Accelerated 9 Buffer ETF - October | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator U.S. Equity Accelerated 9 Buffer ETF - October | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator U.S. Equity Accelerated 9 Buffer ETF - October | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator U.S. Equity Accelerated 9 Buffer ETF - October | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline

due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator U.S. Equity Accelerated 9 Buffer ETF - October | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund

intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator U.S. Equity Accelerated 9 Buffer ETF - October | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because

the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator U.S. Equity Accelerated 9 Buffer ETF - October | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator U.S. Equity Accelerated Plus ETF - October | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator U.S. Equity Accelerated Plus ETF - October | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator U.S. Equity Accelerated Plus ETF - October | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator U.S. Equity Accelerated Plus ETF - October | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period.

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are three times those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce

the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are three times the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator U.S. Equity Accelerated Plus ETF - October | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for

its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator U.S. Equity Accelerated Plus ETF - October | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator U.S. Equity Accelerated Plus ETF - October | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator U.S. Equity Accelerated Plus ETF - October | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator U.S. Equity Accelerated Plus ETF - October | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator U.S. Equity Accelerated Plus ETF - October | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator U.S. Equity Accelerated Plus ETF - October | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the

FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator U.S. Equity Accelerated Plus ETF - October | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator Growth Accelerated ETF - Quarterly | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator Growth Accelerated ETF - Quarterly | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator Growth Accelerated ETF - Quarterly | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator Growth Accelerated ETF - Quarterly | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period. In addition, because the Fund is designed to achieve Outcomes that change for each three-month Outcome Period, the Outcomes that are achieved by the Fund for a three-month Outcome Period will be different than the outcomes achieved by the Fund over multiple Outcome Periods or on an annualized basis. Similarly, investors holding Shares over multiple Outcome Periods will experience different investment results than holding a fund that has a longer Outcome Period (e.g., one year).

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are two times those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases

Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited. In addition, because the Fund is designed to achieve Outcomes that change for each three-month Outcome Period, the Outcomes that are achieved by the Fund for a three-month Outcome Period will be different than the Outcomes achieved by the Fund over multiple Outcome Periods, or on an annualized basis. Similarly, investors holding Shares over multiple Outcome Periods will experience different investment results than holding a fund that has a longer Outcome Period (e.g., one year) and any losses for such holders could exceed the performance for a fund with a longer Outcome Period.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are two times the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator Growth Accelerated ETF - Quarterly | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may

be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction).

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all

of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options

may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator Growth Accelerated ETF - Quarterly | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator Growth Accelerated ETF - Quarterly | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator Growth Accelerated ETF - Quarterly | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator Growth Accelerated ETF - Quarterly | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator Growth Accelerated ETF - Quarterly | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which

the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator Growth Accelerated ETF - Quarterly | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in

offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator Growth Accelerated ETF - Quarterly | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator U.S. Equity Accelerated ETF - Quarterly | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator U.S. Equity Accelerated ETF - Quarterly | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator U.S. Equity Accelerated ETF - Quarterly | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator U.S. Equity Accelerated ETF - Quarterly | Defined Outcome Strategy Risk [Member]  
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Defined Outcome Strategy Risk.    The Fund, in employing a “defined outcome strategy” is subject to certain unique risks, which are detailed below.

Accelerated Return Risk.    During Outcome Periods in which the Underlying ETF increases in value, there can be no guarantee that the Fund will be successful in its strategy to provide the Accelerated Return. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, any Accelerated Return realized by the investor may not match those that the Fund seeks to achieve. Additionally, if an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level near the Cap, there may be little or no ability for that investor to experience an investment gain on their Shares, including any available Accelerated Return. The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund seeks to provide the Outcomes for the entire Outcome Period. In addition, because the Fund is designed to achieve Outcomes that change for each three-month Outcome Period, the Outcomes that are achieved by the Fund for a three-month Outcome Period will be different than the outcomes achieved by the Fund over multiple Outcome Periods or on

an annualized basis. Similarly, investors holding Shares over multiple Outcome Periods will experience different investment results than holding a fund that has a longer Outcome Period (e.g., one year).

The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF for the entire Outcome Period. As a result, it is very unlikely that, on any given day during which the Underlying ETF increases in value, the Fund will increase in value at the same rate as the Accelerated Return, which is designed to be provided at the conclusion of the Outcome Period. Likewise, there are situations during the Outcome Period in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If the Outcome Period has begun and the Fund has already experienced an Accelerated Return, an investor purchasing Shares at that price is subject to, and may experience losses at a higher rate than, any losses of the Underlying ETF for the remainder of the Outcome Period.

Cap Change Risk.    A new Cap is established at the beginning of each Outcome Period and is dependent on prevailing market conditions at the time the Cap is established. As such, the Cap may rise or fall from one Outcome Period to the next and is unlikely to remain the same for consecutive Outcome Periods.

Capped Upside Return Risk.    The Fund’s strategy seeks to provide returns that are subject to the Cap. In the event that the Underlying ETF experiences gains in excess of the Cap for the Outcome Period, the Fund will not participate in, and will underperform the Underlying ETF to the extent of, those gains beyond the Cap. The Fund’s strategy seeks to deliver returns that are two times those of the Underlying ETF (subject to the Cap), if Shares are held at the time at which the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into, there may be little or no ability for that investor to experience an investment gain on their Shares. Further, because the FLEX Options are designed to produce the sought-after returns on the last day of the Outcome Period, if an investor sells Shares prior to the expiration date of the FLEX Options such investor may sell at a point where the Fund’s performance does not match or exceed the performance of the Underlying ETF over the Outcome Period, and therefore may sell at a point where the Fund has underperformed the Underlying ETF, even if such gains do not exceed the Cap. The Fund seeks to actively manage its portfolio such that any transaction fees incurred by the Fund in connection with the management of the Fund’s assets will not impact the Fund’s performance in seeking to provide accelerated exposure to the Underlying ETF or the Fund’s ability to experience returns that match the Cap, to the extent the returns of the Underlying ETF are equal to or greater than the Cap. However, it is not guaranteed that the Fund will be able to successfully manage its assets to contemplate the transaction fees incurred by the Fund to achieve the Outcomes sought by the Fund. To the extent the Fund invests directly in the Underlying ETF, the Cap will be provided after the consideration of dividends received, whereby the Fund has assumed an anticipated dividend rate, which is on the historical dividend rate of the Underlying ETF. This assumed dividend rate may be less than dividends actually received by the Fund for the Outcome Period, in which case the Cap will be less than disclosed herein.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options. If these factors were to occur, the Fund may be unable to achieve its investment objective, and investors may not receive the Outcomes described herein. Finally, the Fund is also subject to management risk as an actively-managed fund, which may cause it not to achieve its investment objective.

Management Risk.    Defined outcome strategies are actively-managed and accordingly, the Fund is subject to management risk. The Sub-Adviser applies investment techniques and risk analyses in making investment decisions for the Fund, subject to the oversight of the Adviser, but there can be no guarantee that the Sub-Adviser will properly implement the Fund’s investment strategy and therefore the Fund may not achieve its investment objective or its sought-after Outcomes, or perform as well as similarly situated funds.

Outcome Period Risk.    The Fund’s investment strategy is designed to deliver the Outcomes if Shares are held from the time the Fund enters into the FLEX Options and held until those FLEX Options expire at the end of the Outcome Period. In the event an investor purchases Shares after the FLEX Options were entered into or sells Shares prior to the expiration of the FLEX Options, the returns realized by the investor will not match those that the Fund seeks to provide. An investor that holds Shares through multiple Outcome Periods may fail to experience gains comparable to those of the Underlying ETF over time because at the end of each Outcome Period, a new Cap will be established based on the then-current price of the Underlying ETF and any gains of the Underlying ETF above the prior Cap will be forfeited. In addition, because the Fund is designed to achieve Outcomes that change for each three-month Outcome Period, the Outcomes that are achieved by the Fund for a three-month Outcome Period will be different than the Outcomes achieved by the Fund over multiple Outcome Periods, or on an annualized basis. Similarly, investors holding Shares over multiple Outcome Periods will experience different investment results than holding a fund that has a longer Outcome Period (e.g., one year) and any losses for such holders could exceed the performance for a fund with a longer Outcome Period.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders with returns that are two times the increase in the returns of the Underlying ETF over the Outcome Period, subject to a maximum return imposed by the Cap. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the Outcome Period, the returns realized by such investor may not match those that the Fund seeks to achieve.
Innovator U.S. Equity Accelerated ETF - Quarterly | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s defined outcome strategy, the Fund utilizes FLEX Options, which are a type of derivative instrument. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or

improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to deliver the sought-after Outcomes. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction).

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator U.S. Equity Accelerated ETF - Quarterly | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition

for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator U.S. Equity Accelerated ETF - Quarterly | Concentration Risk [Member]  
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Concentration Risk.    Through its exposure to the Underlying ETF, the Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.
Innovator U.S. Equity Accelerated ETF - Quarterly | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding, but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator U.S. Equity Accelerated ETF - Quarterly | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities.

Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator U.S. Equity Accelerated ETF - Quarterly | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than

if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Cap, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a

market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator U.S. Equity Accelerated ETF - Quarterly | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification

tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator U.S. Equity Accelerated ETF - Quarterly | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.
Innovator Uncapped Accelerated U.S. Equity ETF | Risk Lose Money [Member]  
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Risk [Text Block] You could lose money by investing in the Fund.
Innovator Uncapped Accelerated U.S. Equity ETF | Risk Not Insured Depository Institution [Member]  
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Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.
Innovator Uncapped Accelerated U.S. Equity ETF | Risk Nondiversified Status [Member]  
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Non-Diversification Risk.    The Fund is classified as a “non-diversified company” under the 1940 Act. As a result, the Fund is only limited as to the percentage of its assets which may be invested in the securities of any one issuer by the diversification requirements imposed by the Internal Revenue Code of 1986, as amended (the “Code”). The Fund may invest a relatively

high percentage of its assets in a limited number of issuers. As a result, the Fund may be more susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, experience increased volatility and be highly invested in certain issuers.
Innovator Uncapped Accelerated U.S. Equity ETF | Investment Strategy Risk [Member]  
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Investment Strategy Risk.    The Fund’s investment strategy subjects it to certain unique risks, which are detailed below.

Accelerated Return Rate Risk.    There can be no guarantee that the Fund will be successful in implementing its investment strategy to provide the Accelerated Return Rate during market conditions where the Underlying ETF is increasing in value. Additionally, if an Investment Package held by the Fund does not increase in value above the Accelerated Threshold, the Investment Package will not provide the Fund, and therefore its investors, with positive returns. In the event an investor purchases Shares after the FLEX Options were entered into or does not stay invested in the Fund for the entirety of the duration of an Investment Package, an investor may not participate in some of the Fund’s sought-after Accelerated Return Rate. Further, because the Fund ladders its Investment Packages, the Fund’s returns are likely to be different than the returns the Fund would produce if a single Investment Package were used. The Accelerated Return Rate may only be realized if the Underlying ETF increases in value above the Accelerated Threshold at the conclusion of an Option Package’s one-year expiration term. If the Underlying ETF increases above the Accelerated Threshold during the one-year period but fails to remain above the Accelerated Threshold at the conclusion of such term, the Investment Package will not deliver, and therefore the Fund will not experience, in any positive returns with respect to that Investment Package. Because the positive returns with respect to an Option Package does not commence until the Accelerated Threshold is achieved, the Accelerated Return Rate that an investor may receive above the Accelerated Threshold with respect to an Investment Package may be less than an investment in a fund that does not have an Accelerated Threshold or Accelerated Return Rate. If an investor purchases Shares after the FLEX Options were entered into and the Fund has risen in value to a level above the Accelerated Threshold, such investor may experience more losses than the Underlying ETF experiences.

The Fund does not seek to provide investment outcomes on a daily or other short-term basis, which is an attribute of other types of exchange-traded funds that provide a daily, multiple exposure to a reference index (i.e., a “daily leveraged ETF”). In contrast, the Fund only seeks to provide investment returns that will increase at a greater rate of change than the Underlying ETF, after an initial level of no participation. The value of the FLEX Options held by the Fund is ultimately derived from the performance of the Underlying ETF’s share price. However, it is very unlikely that on any given day during which the Underlying ETF share price increases in value, the Fund’s share price will increase at the same rate as the Underlying ETF, since the sought-after Accelerated Return Rate is designed to be delivered on the expiration of each Investment Package.

If the Underlying ETF’s share price increases in value above the Accelerated Threshold over the duration of the Option Package, the Fund seeks to provide for an increase in value at a higher rate than the share price increase experienced by the Underlying ETF. Likewise, there are situations during the Option Package in which the Fund may decrease in value at a higher rate than an associated decrease in the Underlying ETF. If an Investment Package has experienced any Accelerated Return Rate, the Investment Package may be subject to the possibility of losses that exceed the losses of the Underlying ETF for the remainder of its one-year term of the Investment Package.

Concentration Risk.    The Fund will concentrate in the securities of a particular industry or group of industries to the same extent as the Underlying ETF. To the extent the Fund has significant exposure in a single asset class or the securities of issuers within the same country, state, region, industry or sector, an adverse economic, business or political development may affect the value of the Fund’s investments more than if the Fund were more broadly diversified. A significant exposure makes the Fund more susceptible to any single occurrence and may subject the Fund to greater market risk than a fund that is more broadly diversified.

Investment Objective Risk.    Certain circumstances under which the Fund might not achieve its objective include, but are not limited, to (i) if the Fund disposes of FLEX Options, (ii) if the Fund is unable to maintain the proportional relationship based on the number of FLEX Options in the Fund’s portfolio, (iii) a significant accrual of Fund expenses in connection with effecting the Fund’s principal investment strategy or (iv) adverse tax law changes or interpretations affecting the treatment of FLEX Options.

Management Risk.    The Fund is subject to management risk because it is an actively managed portfolio. The Sub-Adviser will apply investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that the Fund will meet its investment objective or perform as well as similarly situated funds.

Market Underperformance Risk.    The Fund’s investment strategy may cause the Fund to underperform the price return of the Underlying ETF. The underperformance may be a result of management risk or the implementation of the Fund’s investment strategy.

Upside Participation Risk.    There can be no guarantee that the Fund will be successful in its strategy to provide shareholders the sought-after Accelerated Return Rate. The Fund will likely realize different returns than the price return of the Underlying ETF and may underperform the

Underlying ETF. The Accelerated Return Rate provided by a particular Investment Package, and therefore the Fund, is dependent upon market conditions, such as volatility, at the time of execution of the Investment Package. Therefore, the Accelerated Return Rate provided will vary between specific Investment Packages. When a particular Investment Package is rolled, there is no guarantee that as favorable of market conditions will exist as originally executed and the Accelerated Return Rate provided by such Investment Package may change for the subsequent year, though such Accelerated Return Rate remains constant once the Investment Package is executed. Further, an Investment Package will underperform the returns of the Underlying ETF to the extent that the Accelerated Threshold is not exceeded. If an Investment Package has not increased to a level above the Accelerated Threshold at the end of its term, the Fund will not experience any increase in value with respect to such Investment Package, even if the share price of the Underlying ETF surpassed the Accelerated Threshold at a point during such term. Additionally, an Investment Package may underperform the price return of the Underlying ETF even if the Accelerated Threshold has been surpassed at the expiration of the Investment Package because the Fund will forgo any positive returns with respect to an Investment Package until the Accelerated Threshold is surpassed. In this regard, the price return of the Underlying ETF may need to materially exceed the Accelerated Threshold before an Investment Package recoups these foregone returns by virtue of the Accelerated Return Rate. An investors returns with respect to an Investment Package may therefore be less than the price return of the Underlying ETF even if the Accelerated Threshold is exceeded at the expiration of the Investment Package.
Innovator Uncapped Accelerated U.S. Equity ETF | Derivatives Risk [Member]  
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Derivatives Risk.    To employ the Fund’s investment strategy, the Fund utilizes derivative instruments. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include: (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: (i) changing supply and demand relationships; (ii) government programs and policies; (iii) national and international political and economic events; (iv) changes in interest rates; (v) inflation and deflation; and (vi) changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivative contracts ordinarily have leverage inherent in their terms, which can magnify potential for gain or loss and, therefore, amplify the effects of market volatility on share price. The Fund has taken the necessary steps to comply with the requirements of Rule 18f-4 under the 1940 Act (“Rule 18f-4”) in its usage of FLEX Options. The Fund has adopted and implements a derivatives risk management program that contains policies and procedures reasonably designed to manage the Fund’s derivatives risks, has appointed a derivatives risk manager who is responsible for administrating the derivatives risk management program, complies with outer limitations on risks relating to its derivatives transactions and carries out enhanced reporting to the Board, the SEC and the public regarding its derivatives activities. To the extent the Fund is noncompliant

with Rule 18f-4, the Fund may be required to adjust its investment portfolio which may, in turn, negatively impact the Fund’s ability to achieve its investment objective. In addition to the foregoing, the Fund is subject to the following risks associated with its use of derivative instruments:

Clearing Member Default Risk.    Transactions in some types of derivatives, including FLEX Options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house, such as the OCC, rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to, and receive payments from, a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any option contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for its FLEX Options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. The loss of a clearing member for the Fund to transact with could result in increased transaction costs and other operational issues that could impede the Fund’s ability to implement its investment strategy. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.

Correlation Risk.    The FLEX Options held by the Fund will be exercisable at the strike price only on their expiration date. As a FLEX Option approaches its expiration date, its value typically will increasingly move with the value of the Underlying ETF. However, the value of the FLEX Options may vary prior to the expiration date because of related factors other than the value of the Underlying ETF. The value of the FLEX Options will be determined based upon market quotations or using other recognized pricing methods. Factors that may influence the value of the FLEX Options include interest rate changes and implied volatility levels of the Underlying ETF, among others. The value of the FLEX Options held by the Fund typically do not increase or decrease at the same level as the Underlying ETF’s share price on a day-to-day basis due to these factors (although they generally move in the same direction). Since the FLEX Options held by the Fund do not expire until one year after the commencement of the Outcome Period, it is possible that the degree of non-correlation between the value of the FLEX Options and the value of the Underlying ETF will be higher versus FLEX Options with shorter terms.

Counterparty Risk.    Counterparty risk is the risk an issuer, guarantor or counterparty of a security in the Fund is unable or unwilling to meet its obligation on the security. Counterparty risk may arise because of the counterparty’s financial condition, market activities, or for other reasons. The Fund may be unable to recover its investment from the counterparty or may

obtain a limited and/or delayed recovery. The OCC acts as guarantor and central counterparty with respect to the FLEX Options. As a result, the ability of the Fund to meet its objective depends on the OCC being able to meet its obligations. In the event an OCC clearing member that is a counterparty of the Fund were to become insolvent, the Fund may have some or all of its FLEX Options closed without its consent or may experience delays or other difficulties in attempting to close or exercise its affected FLEX Options positions, both of which would impair the Fund’s ability to deliver on its investment strategy. The OCC’s rules and procedures are designed to facilitate the prompt settlement of options transactions and exercises, including for clearing member insolvencies. However, there is the risk that the OCC and its backup system will fail if clearing member insolvencies are substantial or widespread. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses.

FLEX Options Risk.    The Fund will utilize FLEX Options issued and guaranteed for settlement by the OCC. The use of option contracts involves investment strategies and risks different from those associated with ordinary portfolio securities transactions. The prices of option contracts are volatile and are influenced by, among other things, actual and anticipated changes in the value of the underlying instrument, changes in interest or currency exchange rates, including the anticipated volatility, which are affected by fiscal and monetary policies and by national and international political, changes in the actual or implied volatility or the reference asset, the time remaining until the expiration of the option contract and economic events. There may at times be an imperfect correlation between the movement in values option contracts and the reference asset, and there may at times not be a liquid secondary market for certain option contracts.

The Fund bears the risk that the OCC will be unable or unwilling to perform its obligations under the FLEX Options contracts. In the unlikely event that the OCC becomes insolvent or is otherwise unable to meet its settlement obligations, the Fund could suffer significant losses. Additionally, FLEX Options may be less liquid than certain other securities, such as standardized options. In less liquid markets for the FLEX Options, the Fund may have difficulty closing out certain FLEX Options positions at desired times and prices. In connection with the creation and redemption of Shares, to the extent market participants are not willing or able to enter into FLEX Option transactions with the Fund at prices that reflect the market price of the Shares, the Fund’s NAV and, in turn the share price of the Fund, could be negatively impacted.

The Fund may experience substantial downside from specific FLEX Option positions and certain FLEX Option positions may expire worthless. The FLEX Options held by the Fund are exercisable at the strike price on their expiration date. As a FLEX Option approaches its expiration date, its value typically increasingly moves with the value of the Underlying ETF. However, prior to such date, the value of the FLEX Options does not increase or decrease at the same rate as the Underlying ETF’s share price on a day-to-day basis (although they generally move in the same direction). The value of the FLEX Options held by the Fund will be determined based on market quotations or other recognized pricing methods. The value of the underlying FLEX Options will be affected by, among others, changes in the Underlying ETF’s share price, changes in interest rates, changes in the actual and implied volatility of the Underlying ETF and the remaining time to until the FLEX Options expire.

Liquidity Risk.    In the event that trading in the underlying FLEX Options is limited or absent, the value of the Fund’s FLEX Options may decrease. There is no guarantee that a liquid secondary trading market will exist for the FLEX Options. The trading in FLEX Options may be less deep and liquid than the market for certain other securities, including certain non-customized option contracts. In a less liquid market for the FLEX Options, terminating the FLEX Options may require the payment of a premium or acceptance of a discounted price and may take longer to complete. Additionally, the liquidation of a large number of FLEX Options may more significantly impact the price in a less liquid market. Further, the Fund requires a sufficient number of participants to facilitate the purchase and sale of options on an exchange to provide liquidity to the Fund for its FLEX Option positions. A less liquid trading market may adversely impact the value of the FLEX Options and the value of your investment.
Innovator Uncapped Accelerated U.S. Equity ETF | Underlying ETF Risk [Member]  
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Underlying ETF Risk.    The Fund’s investment performance largely depends on the investment performance and associated risks of the Underlying ETF. The Underlying ETF is subject to many of the same structural risks as the Fund that are described in more detail herein (see “Risks Associated with ETFs” below). The Adviser expects to waive a portion of its management fee in an amount that equals to any acquired fund fees and expenses the Fund incurs as a result of any direct investment in the Underlying ETF. However, if the Adviser does not waive such expenses in the future, the Fund will bear its proportionate share of the Underlying ETF’s expenses, subjecting Fund shareholders to such expenses. Further, the risks of investing in an ETF also include the risks associated with the underlying investments held by the ETF. As such, the Fund may be subject to the following risks as a result of its exposure to the Underlying ETF (or the components thereof):

Equity Securities Risk.    Equity securities may decline in value because of declines in the price of a particular holding or the broad stock market. Such declines may relate directly to the issuer of a security or broader economic or market events, including changes in interest rates. The value of shares will fluctuate with changes in the value of the equity securities the Underlying ETF invests in.

Information Technology Companies Risk.    Information technology companies face intense competition, both domestically and internationally, which may have an adverse effect on profit margins. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. The products of information technology companies may face obsolescence due to rapid technological developments, frequent new product introduction, unpredictable changes in growth rates and competition for the services of qualified personnel. Companies in the information technology sector are heavily dependent on patent and intellectual property rights. The loss or impairment of these rights may adversely affect the profitability of these companies. Information technology companies are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action.

Large Capitalization Companies Risk.    Large capitalization companies may grow at a slower rate and be less able to adapt to changing market conditions than smaller capitalization companies. Thus, the return on investment in securities of large capitalization companies

may be less than the return on investment in securities of small and/or mid capitalization companies. The performance of large capitalization companies also tends to trail the overall market during different market cycles.
Innovator Uncapped Accelerated U.S. Equity ETF | Cyber Security Risk [Member]  
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Cyber Security Risk.    As the use of Internet technology has become more prevalent in the course of business, the investment industry has become more susceptible to potential operational risks through breaches in cyber security. A breach in cyber security refers to both intentional and unintentional events that may cause the Fund to lose proprietary information, suffer data corruption or lose operational capacity. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Cyber security breaches may involve unauthorized access to the Fund’s digital information systems through “hacking” or malicious software coding but may also result from outside attacks such as denial-of-service attacks through efforts to make network services unavailable to intended users. In addition, cyber security breaches of the Fund’s third-party service providers, such as its administrator, transfer agent, or custodian, can also subject the Fund to many of the same risks associated with direct cyber security breaches. The Fund has established risk management systems designed to reduce the risks associated with cyber security. However, there is no guarantee that such efforts will succeed, especially because the Fund does not directly control the cyber security systems of issuers or third-party service providers.
Innovator Uncapped Accelerated U.S. Equity ETF | Market Risk [Member]  
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Market Risk.    The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Assets may decline in value due to factors affecting financial markets generally or particular asset classes or industries represented in the markets. The value of FLEX Options or other assets may also decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or due to factors that affect a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class. During a general market downturn, multiple asset classes may be negatively affected. Changes in market conditions and interest rates will not have the same impact on all types of securities. Securities, including the Shares, are subject to market fluctuations and liquidity constraints that may be caused by such factors as economic, political, or regulatory developments, changes in interest rates, and/or perceived trends in securities prices. Shares could decline in value or underperform other investments. The value of Shares may also decline as a result of market conditions. Factors such as inflation, changes in interest rates, changes in regulatory requirements, bank failures, political climate deterioration or developments, armed conflicts, natural disasters or future health crises, may negatively impact market conditions, and cause a decrease in the value of Shares. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets.
Innovator Uncapped Accelerated U.S. Equity ETF | Risks Associated with ETFs [Member]  
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Risks Associated with ETFs.    The Fund is an ETF, and therefore, as a result of an ETF’s structure, is subject to the following risks:

Authorized Participant Concentration Risk.    Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as authorized participants on an agency basis (i.e., on behalf of other market participants). To the extent that authorized participants exit the business or are unable to proceed with orders for the issuance or redemption of Creation Units and no other authorized participant is able to step forward to fulfill the order, Shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts and/or delisting, and the bid/ask spread (the difference between the price that someone is willing to pay for Shares at a specific point in time versus the price at which someone is willing to sell) on Shares may widen.

Cash Transactions Risk.    The Fund may effectuate all or a portion of the issuance and redemption of Creation Units for cash, rather than in-kind securities. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that effectuates its Creation Units only on an in-kind basis. ETFs are able to make in-kind redemptions to avoid being taxed on gains on the distributed portfolio securities at the fund level. A fund that effects redemptions for cash may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and may be forced to recognize gains. The Fund intends to distribute gains that arise by virtue of the issuance and redemption of Creation Units being effectuated in cash to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with special tax rules that apply to it. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than if they had made an investment in another ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to those purchasing and redeeming Creation Units in the form of creation and redemption transaction fees. The Fund’s use of cash for creations and redemptions could also result in dilution to the Fund and increased transaction costs, which could negatively impact the Fund’s ability to achieve its investment objective.

Market Maker Risk.    If the Fund has lower average daily trading volumes, it may rely on a small number of third-party market makers to provide a market for the purchase and sale of Shares. Any trading halt or other problem relating to the trading activity of these market makers could result in a dramatic change in the spread between the Fund’s NAV and the price at which the Shares are trading on the Exchange, which could result in a decrease in the market price of the Shares. In addition, decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying values of

the Fund’s portfolio securities and the Fund’s market price. This reduced effectiveness could result in Shares trading at a discount to NAV and in greater than normal intra-day bid-ask spreads for Shares.

Operational Risk.    The Fund is exposed to operational risks arising from a number of factors, including, but not limited to, human error in the calculation of the Fund’s investment strategy, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund and its Adviser and Sub-Adviser seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Premium/Discount Risk.    Shares trade on the Exchange at market prices rather than their NAV. The market price of Shares generally corresponds to movements in the Fund’s NAV as well as the relative supply and demand for Shares on the Exchange. The market price may be at, above (a premium) or below (a discount) the Fund’s NAV. Differences in market prices of Shares and the NAV per Share may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for Shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. These differences can be especially pronounced during times of market volatility or stress. During these periods, the demand for Shares may decrease considerably and cause the market price of Shares to deviate, and in some cases deviate significantly, from the Fund’s NAV and the bid/ask spread on Shares may widen.

Trading Issues Risk.    Although Shares are listed for trading on the Exchange, there can be no assurance that an active trading market for Shares will develop or be maintained. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. Market makers are under no obligation to make a market in the Shares, and authorized participants are not obligated to submit purchase or redemption orders for Creation Units. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged.
Innovator Uncapped Accelerated U.S. Equity ETF | Tax Risk [Member]  
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Tax Risk.    The Fund has elected to be treated and intends to qualify each year as a regulated investment company (“RIC”) under Subchapter M of the Code. In order to be treated as a RIC, the Fund must meet certain income, diversification and distribution tests. If, in any year, the Fund fails to qualify as a RIC under the applicable tax laws, the Fund would be taxed as an ordinary corporation. The federal income tax treatment of certain aspects of the proposed operations of the Fund is not entirely clear, which could impact the Fund’s ability to qualify as a RIC. This includes the tax aspects of the Fund’s options strategy, its hedging strategy, the possible application of the “straddle” rules, and various loss limitation provisions of the Code. The Fund’s investments in offsetting positions with respect to the Underlying ETF may affect the character of gains or losses realized by the Fund under the Code’s “straddle” rules and may increase any short-term

capital gains realized by the Fund. The Fund intends to treat any income it may derive from the FLEX Options as “qualifying income” under the provisions of the Code applicable to RICs. If the income is not qualifying income or the referenced asset is not appropriately treated as the issuer of the FLEX Options, the Fund could lose its own status as a RIC. To maintain its status as a RIC, the Fund must distribute, on an annual basis, at least 90% of its investment company taxable income for each taxable year. In addition, to avoid a non-deductible excise tax, the Fund must distribute on a calendar year basis 98% of its ordinary taxable income and 98.2% of its capital gain net income for each taxable year (plus 100% of any undistributed amounts for prior years). Separately, depending upon the circumstances, sales of its portfolio investments (including FLEX Options) to fund redemptions could cause the Fund to recognize income that the Fund is required to distribute to maintain the Fund’s RIC status and avoid the excise tax. Funding such distributions could require additional sales, which could require more distributions and affect the projected performance of the Fund. Alternatively, if the Fund only makes distributions to maintain its RIC status and becomes subject to the excise tax, that could also affect the projected performance of the Fund. In either case, the assets sold to fund redemptions, distributions or pay the excise tax will not be available to assist the Fund in meeting its target outcome. With respect to the RIC diversification test, identifying the issuer can depend on the terms and conditions of a given investment. There is no published Internal Revenue Service guidance or only limited case law on how to determine the “issuer” of certain derivatives that the Fund will enter into. Based upon language in the legislative history, the Fund intends to treat the issuer of the FLEX Options as the referenced asset, which, assuming the referenced asset qualifies as a RIC, would allow the Fund to qualify for special rules in the RIC diversification requirements. The FLEX Options included in the portfolio are exchange-traded options. Under Section 1256 of the Code, certain types of exchange-traded options are treated as if they were sold (i.e., “marked to market”) at the end of each year. The Fund does not believe that the positions held by the Fund will be subject to Section 1256, which means that the positions will not be marked to market. There is a risk that because the offsetting FLEX Options are being held by a single person that the IRS may take the position that the FLEX Options, viewed together, should be treated as a single instrument for federal tax purposes. The result of such a position would be that the Fund would fail the RIC diversification tests causing the RIC to be taxed as an ordinary corporation, unless certain cure rights based upon reasonable cause may apply. The Fund has obtained an opinion of tax counsel that the FLEX Options should not be collapsed into a single instrument. However, such an opinion is not binding upon the IRS or the courts. In the event that a shareholder purchases Shares of the Fund before a distribution by the Fund, the entire distribution may be taxable to the shareholder even though a portion of the distribution effectively represents a return of the purchase price.
Innovator Uncapped Accelerated U.S. Equity ETF | Valuation Risk [Member]  
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Valuation Risk.    During periods of reduced market liquidity or in the absence of readily available market quotations for the holdings of the Fund, the valuation of the Fund’s FLEX Options will become more difficult. In market environments where there is reduced availability of reliable objective pricing data, the judgment of the Fund’s investment adviser in determining the fair value of the security may play a greater role. While such determinations may be made in good faith, it may nevertheless be more difficult for the Fund to accurately assign a daily value.