Investment Risks |
Apr. 23, 2026 |
|---|---|
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Growth ETF | Risk Lose Money [Member] | |
| Prospectus Line Items | |
| Risk [Text Block] | You could lose money by investing in the fund. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Growth ETF | 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 government agency . |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Growth ETF | GrowthInvestingMember | |
| Prospectus Line Items | |
| Risk [Text Block] | "Growth" Investing. "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Growth ETF | QuantitativeInvestingMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Quantitative Investing. Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Growth ETF | FluctuationOfNetAssetValueAndSharePriceMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Fluctuation of Net Asset Value and Share Price. The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. In addition, in stressed market conditions or periods of market disruption or volatility, the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Growth ETF | TradingIssuesMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Trading Issues. There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Growth ETF | IssuerSpecificChangesMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Growth ETF | StockMarketVolatilityMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Growth ETF | MidCapInvestingMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Mid Cap Investing. The value of securities of medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Value ETF | Risk Lose Money [Member] | |
| Prospectus Line Items | |
| Risk [Text Block] | You could lose money by investing in the fund. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Value ETF | 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 government agency . |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Value ETF | QuantitativeInvestingMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Quantitative Investing. Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Value ETF | FluctuationOfNetAssetValueAndSharePriceMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Fluctuation of Net Asset Value and Share Price. The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. In addition, in stressed market conditions or periods of market disruption or volatility, the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Value ETF | ValueInvestingMember | |
| Prospectus Line Items | |
| Risk [Text Block] | "Value" Investing. "Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Value ETF | TradingIssuesMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Trading Issues. There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Value ETF | IssuerSpecificChangesMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Value ETF | StockMarketVolatilityMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Mid Cap Value ETF | MidCapInvestingMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Mid Cap Investing. The value of securities of medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Growth ETF | Risk Lose Money [Member] | |
| Prospectus Line Items | |
| Risk [Text Block] | You could lose money by investing in the fund. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Growth ETF | 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 government agency . |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Growth ETF | GrowthInvestingMember | |
| Prospectus Line Items | |
| Risk [Text Block] | "Growth" Investing. "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Growth ETF | QuantitativeInvestingMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Quantitative Investing. Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Growth ETF | FluctuationOfNetAssetValueAndSharePriceMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Fluctuation of Net Asset Value and Share Price. The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. In addition, in stressed market conditions or periods of market disruption or volatility, the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Growth ETF | TradingIssuesMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Trading Issues. There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Growth ETF | IssuerSpecificChangesMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Growth ETF | StockMarketVolatilityMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Growth ETF | SmallCapInvestingMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Small Cap Investing. The value of securities of smaller, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Value ETF | Risk Lose Money [Member] | |
| Prospectus Line Items | |
| Risk [Text Block] | You could lose money by investing in the fund. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Value ETF | 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 government agency . |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Value ETF | QuantitativeInvestingMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Quantitative Investing. Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Value ETF | FluctuationOfNetAssetValueAndSharePriceMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Fluctuation of Net Asset Value and Share Price. The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. In addition, in stressed market conditions or periods of market disruption or volatility, the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Value ETF | ValueInvestingMember | |
| Prospectus Line Items | |
| Risk [Text Block] | "Value" Investing. "Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Value ETF | TradingIssuesMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Trading Issues. There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Value ETF | IssuerSpecificChangesMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Value ETF | StockMarketVolatilityMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. |
| FidelityEnhancedSmallMidCapGrowthValueETFComboPro | Fidelity Enhanced Small Cap Value ETF | SmallCapInvestingMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Small Cap Investing. The value of securities of smaller, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers. |
| Document Type | 485BPOS |