Under normal circumstances, the Portfolio invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in the equity securities of domestic large capitalization companies. Additionally, the Portfolio may invest in foreign securities. Securities will be selected using a proprietary quantitative model and will consist primarily of equity securities of companies with similar capitalizations of the companies included in the S&P 500^®​ Index. However, the Portfolio may invest in securities outside the S&P 500^®​ Index capitalization range. The model systematically tracks and ranks the characteristics of approximately 1200 stocks of primarily large capitalization issuers located in the United States, but may also include foreign issuers, and is designed to select stocks based on an analysis of a wide range of factors, such as relative value, earnings quality, market sentiment, and thematic insights. The Portfolio's sub-adviser is BlackRock Investment Management, LLC ("BlackRock" or the "Sub-Adviser").

The Portfolio primarily seeks to buy common stock and may also invest in preferred stock and convertible securities listed in U.S. equity markets, but may also invest in foreign securities. The Portfolio may invest in securities of foreign issuers in the form of depositary receipts or other securities that are convertible into securities of foreign issuers.

Equity securities include common stock, preferred stock, securities convertible into common stock and securities or other instruments whose price is linked to the value of common stock. Preferred stock is a class of stock that often pays dividends at a specified rate and has preference over common stock in dividend payments and liquidation of assets. Convertible securities typically pay current income as either interest (debt security convertibles) or dividends (preferred stock), and their value usually reflects both the stream of current income payments and the market value of the underlying common stock.

The Portfolio may use derivatives, including futures, to gain equity exposure and to manage cash flows into or out of the Portfolio effectively. Derivatives are financial instruments whose value is derived from underlying market factors or another asset, such as a security, a commodity, a currency or an index.

Under normal circumstances, the Portfolio invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in equity securities. Securities selected will consist of developed market equity securities and emerging market equities, of companies with similar capitalizations of the companies included in the MSCI ACWI ex-USA Index, selected using a proprietary quantitative model. The model systematically tracks and ranks the characteristics of issuers across developed and emerging markets, and is designed to select stocks based on an analysis of a wide range of factors, such as relative value; earnings quality; market sentiment; and thematic insights. The Portfolio's sub-adviser is BlackRock Investment Management, LLC ("BlackRock" or the "Sub-Adviser").

Equity securities include common stock, preferred stock, exchange-traded funds ("ETFs"), including ETFs that are affiliated with the Sub-Adviser, securities convertible into common stock and securities or other instruments whose price is linked to the value of common stock. Preferred stock is a class of stock that often pays dividends at a specified rate and has preference over common stock in dividend payments and liquidation of assets. Convertible securities typically pay current income as either interest (debt security convertibles) or dividends (preferred stock), and their value usually reflects both the stream of current income payments and the market value of the underlying common stock.

Under normal circumstances, at least 80% of the Portfolio's net assets will be invested in or exposed to securities of non-U.S. issuers ("foreign securities") or derivative instruments with exposure to foreign securities of at least three different countries outside the United States. Investments are deemed to be "foreign" if: (a) an issuer's domicile or location of headquarters is in a foreign country; (b) an issuer derives a significant proportion (at least 50%) of its revenues or profits from goods produced or sold, investments made, or services performed in a foreign country or has at least 50% of its assets situated in a foreign country; (c) the principal trading market for a security is located in a foreign country; (d) it is a foreign currency or (e) is an exchange-traded fund predominately invested in companies listed in a foreign country. The Portfolio may invest in securities of foreign issuers in the form of depositary receipts or other securities that are convertible into securities of foreign issuers.

The Portfolio may use derivatives, including futures, foreign exchange transactions, and/or forward foreign currency contracts to gain equity exposure and to manage cash flows into or out of the Portfolio effectively. Derivatives are financial instruments whose value is derived from underlying market factors or another asset, such as a security, a commodity, a currency or an index.

Under normal circumstances, the Portfolio invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in the equity securities of domestic large capitalization companies. Additionally, the Portfolio may invest in securities of foreign issuers. Securities will be selected using a proprietary quantitative model and will consist primarily of equity securities of companies with similar capitalizations of the companies included in the Russell 1000^®​ Value Index. However, the Portfolio may invest in securities outside the Russell 1000^®​ Value Index capitalization range. The model systematically tracks and ranks the characteristics of stocks of primarily large capitalization value issuers located in the United States, but may also include foreign issuers, and is designed to select stocks based on an analysis of a wide range of factors, such as relative value, earnings quality, market sentiment, and thematic insights. The Portfolio's sub-adviser is BlackRock Investment Management, LLC ("BlackRock" or the "Sub-Adviser"). The value investment style generally involves investing in stocks of companies that are trading at a discount to peer group companies, based on such financial metrics as dividend yield and price-to-earnings, price-to-revenue and price-to-book ratios.

The Portfolio primarily seeks to buy common stock and may also invest in preferred stock and convertible securities listed in U.S. equity markets, but may also invest in foreign securities. The Portfolio may invest in securities of foreign issuers in the form of depositary receipts or other securities that are convertible into securities of foreign issuers.

Equity securities include common stock, preferred stock, securities convertible into common stock and securities or other instruments whose price is linked to the value of common stock. Preferred stock is a class of stock that often pays dividends at a specified rate and has preference over common stock in dividend payments and liquidation of assets. Convertible securities typically pay current income as either interest (debt security convertibles) or dividends (preferred stock), and their value usually reflects both the stream of current income payments and the market value of the underlying common stock.

The Portfolio may use derivatives, including futures, to gain equity exposure and to manage cash flows into or out of the Portfolio effectively. Derivatives are financial instruments whose value is derived from underlying market factors or another asset, such as a security, a commodity, a currency or an index.

In seeking to achieve the Portfolio's investment objective, the Portfolio's sub-adviser, Goldman Sachs Asset Management, L.P. ("GSAM" or the "Sub-Adviser"), invests, under normal circumstances, at least 80% of the Portfolio's net assets, plus any borrowings for investment purposes in fixed-income securities, including securities issued or guaranteed by the U.S. government, its agencies, instrumentalities or sponsored enterprises ("U.S. Government Securities"), corporate debt securities, collateralized loan obligations (limited to no more than 15% of the Portfolio's net assets), privately issued adjustable rate and fixed rate mortgage loans or other mortgage-related securities ("Mortgage-Backed Securities") and asset-backed securities. The Portfolio may also invest in custodial receipts, fixed-income securities issued by or on behalf of states, territories, and possessions of the United States (including the District of Columbia) ("Municipal Securities") and convertible securities.

The Portfolio may also engage in forward foreign currency transactions for both hedging and non-hedging purposes. The Portfolio also intends to invest in derivatives, including (but not limited to) interest rate futures, interest rate swaps and credit default swaps, which are used primarily to hedge the Portfolio's portfolio risks, manage the Portfolio's duration and/or gain exposure to certain fixed-income securities or indices. The Portfolio may purchase or sell Mortgage-Backed Securities issued or guaranteed by U.S. government agencies or sponsored enterprises ("Agency Mortgage-Backed Securities") on a delayed delivery or forward commitment basis through the to-be-announced ("TBA") market. With TBA transactions, the particular securities to be delivered must meet specified terms and standards.

The value of the Portfolio's investments in non-U.S. dollar denominated obligations (hedged or unhedged against currency risk) will not exceed 25% of its total assets measured at the time of purchase ("Total Assets") and 10% of the Portfolio's Total Assets may be invested in sovereign and corporate debt securities and other instruments of issuers in emerging market countries ("emerging countries debt"). Additionally, exposure to non-U.S. currencies (unhedged against currency risk) will not exceed 25% of the Portfolio's Total Assets. In pursuing its investment objective, the Portfolio uses the Bloomberg U.S. Aggregate Bond Index (the "Index") as its performance benchmark, but the Portfolio will not attempt to replicate the Index. The Portfolio may, therefore, invest in securities that are not included in the Index.

The Portfolio may invest in fixed-income securities rated at least BBB– or Baa3 at the time of purchase. Securities will either be rated by a nationally recognized statistical rating organization ("NRSRO") or, if unrated, determined by GSAM to be of comparable credit quality. After its purchase, a portfolio security may be assigned a lower rating or cease to be rated, which may affect the market value and liquidity of the security. If this occurs, the Portfolio may continue to hold the security if GSAM believes it is in the best interest of the Portfolio and its shareholders.

The Portfolio's target duration range under normal interest rate conditions is expected to approximate that of the Index, plus or minus 1.5 years, and since the Portfolio's inception on November 1, 2017 through December 31, 2025, the duration of the Index has ranged between 5.75 and 6.53 years. "Duration" is a measure of a debt security's price sensitivity to changes in interest rates. The longer the duration of the Portfolio (or an individual debt security), the more sensitive its market price to changes in interest rates. For example, if market interest rates increase by 1%, the market price of a debt security with a positive duration of 3 years will generally decrease by approximately 3%. Conversely, a 1% decline in market interest rates will generally result in an increase of approximately 3% of that security's market price.

The Sub-Adviser employs a fundamental investment process that may integrate traditional fundamental factors alongside environmental, social and governance ("ESG") factors. No one factor or consideration is determinative in the fundamental investment process.