The Portfolio seeks to provide total return.

This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Portfolio. The table and the example do not include any fees or sales charges imposed by your variable annuity or variable life insurance contract. If they were included, your costs would be higher. Please refer to your variable contract prospectus for information on the separate account fees and expenses associated with your contract.

Under normal market conditions, the Portfolio seeks to achieve its investment objective primarily through investing at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in a diversified group of underlying exchange-traded funds ("Underlying ETFs") that are affiliated with the Portfolio's sub-adviser, BlackRock Investment Management, LLC ("BlackRock" or the "Sub-Adviser").

Under normal market conditions, the Sub-Adviser allocates approximately 40% to 80% of the Portfolio's assets to Underlying ETFs that invest primarily in equity securities of both U.S. and non-U.S. issuers and 20% to 60% of the Portfolio's assets to Underlying ETFs that invest primarily in fixed-income securities and/or cash alternatives in both U.S. and non-U.S. markets. The Portfolio incorporates a global tactical asset allocation strategy that, under normal circumstances, seeks to adjust allocations to asset classes that BlackRock deems to be attractive investments over the short to intermediate term. This strategy seeks to enhance the total return and manages portfolio risk at the aggregate level. Modifications in the allocations to the ETFs are based on techniques that may include technical, qualitative, quantitative and momentum analysis of the market. The mix of ETFs will vary with market conditions and BlackRock's assessment of the ETFs' relative attractiveness as investment opportunities. Certain ETFs' investments will focus on investments in securities listed on domestic and foreign equity exchanges with growth and value styles, including, small-, mid- and large-cap issuers, and on investments in domestic and foreign fixed-income instruments including U.S. treasuries, mortgage- and asset-backed securities, corporate loans, distressed securities, inflation-indexed instruments, corporate bonds, sovereign and emerging market debt. An ETF may invest a large percentage of its assets in indices located in a single country, a small number of countries, or a particular geographic region. In addition, the Underlying ETFs may invest in lower quality debt securities. Such securities are sometimes referred to as "junk bonds." An Underlying ETF may integrate environmental, social and governance ("ESG") factors into its investment selection process and/or screen out particular companies and industries based on certain ESG related criteria. An Underlying ETF may also seek to deliver exposure to certain style factors (i.e. quality, value, momentum, size, minimum volatility).

The Portfolio may also invest in securities and derivative contracts, including indexes, swap agreements, futures, options, currency forwards, and U.S. Treasury securities, and cash equivalents including, without limitation, commercial paper, and time deposits, as determined by the Sub-Adviser.

Asset Allocation Risk: The Portfolio's percentage allocations among its investments could cause the Portfolio to underperform relative to relevant benchmarks and other mutual funds with similar investment objectives.

Derivatives Risk: The use of derivatives may increase costs, reduce the Portfolio's returns and/or increase volatility. The use of derivatives may also result in leverage, which can magnify the effects of changes in the value of investments, make such investments more volatile and expose the Portfolio to losses that exceed the initial amount

invested. Many types of derivatives are also subject to the risk that the other party in the transaction will not fulfill its contractual obligation. Derivatives are subject to risks arising from margin requirements. In addition, the fluctuations in the values of derivatives may not correlate perfectly with, and may be more sensitive to market events than, the overall securities markets. The possible lack of a liquid secondary market for derivatives and the resulting inability to sell or otherwise close-out a derivatives position at an advantageous time or price could expose the Portfolio to losses and could make derivatives more difficult to value accurately. Derivative investments are further subject to regulatory risks, from both U.S. and foreign regulators that may impact the availability, liquidity and costs associated with such investments and potentially limit the ability of mutual funds to invest in derivatives.

Emerging Markets Risk: Emerging markets are riskier than more developed markets because they tend to develop unevenly and may never fully develop. Investments in emerging markets may be considered speculative. Emerging markets are more likely to experience hyperinflation and currency devaluations, which adversely affect returns to U.S. investors. In addition, many emerging securities markets have far lower trading volumes and less liquidity than developed markets.

ESG Investing Risk: The Portfolio may invest a portion of its assets in Underlying Funds that integrate ESG in their investment selection process and/or screen out particular companies and industries based on certain ESG related criteria. An Underlying Fund may forgo certain investment opportunities, which may affect the Portfolio's exposure to certain companies or industries. An Underlying Fund's results may be lower than other funds that do not seek to invest in companies based on ESG ratings and/or screen out certain companies or industries. An Underlying Fund may invest in companies that do not reflect the beliefs and values of any particular investor.

Fixed Income Risk: The value of bonds and other fixed-income securities will fluctuate with changes in interest rates. Typically, a rise in periods of volatility and rising interest rates may lead to increased redemptions and volatility and decreased liquidity in the fixed-income markets, making it more difficult to sell fixed-income holdings. In general, the market price of debt securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Securities issued by U.S. government agencies or government-sponsored enterprises may not be guaranteed by the U.S. Treasury. Other risk factors include credit risk (the debtor may default), prepayment risk (the debtor may pay its obligations early, reducing the amount of interest payments), extension risk (repayments may occur more slowly if interest rates rise) and income risk (distributions to shareholders may decline where interest rates fall or defaults occur). These risks could affect the value of a particular investment, possibly causing the Portfolio's share price and total return to be reduced and fluctuate more than other types of investments.

Foreign Currency Risk: Exposure to foreign securities denominated in non-US dollar currencies will subject the Portfolio to currency trading risks that include market risk and country risk. Market risk results from adverse changes in exchange rates. Country risk arises because a government may interfere with transactions in its currency.

Forward Currency Contracts Risk: Use of forward currency contracts can have the effect of reducing returns, limiting opportunities for gain and creating losses. Forward currency contracts do not eliminate fluctuations in the value of foreign securities but allow the Portfolio to establish a fixed rate of exchange for a future point in time.

High-Yield Debt Securities Risk: Lower-quality bonds (including loans), known as "high-yield" or "junk" bonds, and unrated securities of similar credit quality are considered speculative and involve greater risk of a complete loss of an investment, or delays of interest and principal payments, than higher-quality debt securities. Issuers of high-yield debt securities are typically not as strong financially as those issuing securities of higher credit quality. These issuers are more likely to encounter financial difficulties and are more vulnerable to changes in the relevant economy that could affect their ability to make interest and principal payments when due. The prices of high-yield debt securities generally fluctuate more than higher quality securities. High-yield debt securities are generally less liquid than higher quality securities, making them harder to sell and harder to value.

Large Cap Risk: Large cap companies may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes, and also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion.

Market Risk: Overall securities market risks may affect the value of individual securities. The market prices of securities may go up or down, sometimes rapidly or unpredictably, due to general market conditions, such as real or perceived adverse economic or political conditions. Factors such as foreign and domestic economic growth and market conditions, interest rate levels, and political events may adversely affect the securities markets. Local, regional or global events such as war, military conflict, geopolitical disputes, acts of terrorism, the spread of infectious illness or other public health issues, natural disasters, recessions, inflation, rapid interest rate changes, supply chain disruptions, tariffs and other restrictions on trade, sanctions, increased government spending, social or political unrest or other events, or the threat or potential threat of one or more such events and developments, could also have a significant impact on the Portfolio and its investments.

Mortgage- and Asset-Backed Securities Risk: Mortgage- and asset-backed securities differ from conventional debt securities because principal is paid back periodically over the life of the security rather than at maturity. An investor may receive unscheduled payments of principal due to voluntary prepayments, refinancings or foreclosures on the underlying loans. To the investor this means a loss of anticipated interest, and a portion of its principal investment represented by any premium the investor may have paid. Mortgage prepayments generally increase when interest rates fall. Mortgage-backed securities also are subject to extension risk. Rising interest rates could reduce the rate of prepayments on mortgage-backed securities and extend their life. This could cause the price of

the mortgage-backed securities and the Underlying Fund's share price to fall and would make the mortgage-backed securities more sensitive to interest rate changes. Issuers of asset-backed securities may have limited ability to enforce the security interest in the underlying assets, and credit enhancements provided to support the securities, if any, may be inadequate to protect investors in the event of default. Like mortgage-backed securities, asset-backed securities are subject to prepayment and extension risks.

Settlement Risk: Settlement risk is the risk that a settlement in a transfer system does not take place as expected. If the Portfolio cannot settle or is delayed in settling a sale of securities, it may lose money if the value of the security then declines or, if it has contracted to sell the security to another party, the Portfolio could be liable for any losses incurred.

Sovereign Debt Risk: Sovereign debt instruments are subject to the risk that a governmental entity may delay or refuse to pay interest or repay principal on its sovereign debt.

Tactical Asset Allocation Risk: Tactical asset allocation is an investment strategy that actively adjusts a portfolio's asset allocation. The Portfolio's tactical asset management discipline may not work as intended. The Portfolio may not achieve its objective and may not perform as well as other funds using other asset management styles. The Sub-Adviser's evaluations and assumptions in selecting Underlying Funds or individual securities may be incorrect in view of actual market conditions, and may result in owning securities that underperform other securities.

Value Stock Risk: Value stocks involve the risk that they may never reach what the ETF manager believes is their full market value, either because the market fails to recognize the stock's intrinsic worth or the manager misgauged that worth. Because different types of stocks tend to shift in and out of favor depending on market and economic conditions, the Portfolio's performance may sometimes be lower or higher than that of other types of mutual funds.