Strategy. Under normal circumstances, the Portfolio invests at least 80% of its net assets in inflation-indexed bonds of varying maturities issued by the U.S. and non-U.S. governments, their agencies or instrumentalities and corporations, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. Inflation-indexed bonds (e.g., Treasury Inflation Protected Securities (TIPS)) are fixed income securities that are structured to provide protection against inflation. The value of the bonds principal or the interest income paid on the bonds is adjusted to track changes in an official inflation measure. Assets not invested in inflation-indexed bonds may be invested in other types of fixed income instruments, including bonds, debt securities, including variable and floating rate securities, and other … Show more… Under normal circumstances, the Portfolio invests at least 80% of its net assets in inflation-indexed bonds of varying maturities issued by the U.S. and non-U.S. governments, their agencies or instrumentalities and corporations, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. Inflation-indexed bonds (e.g., Treasury Inflation Protected Securities (TIPS)) are fixed income securities that are structured to provide protection against inflation. The value of the bonds principal or the interest income paid on the bonds is adjusted to track changes in an official inflation measure. Assets not invested in inflation-indexed bonds may be invested in other types of fixed income instruments, including bonds, debt securities, including variable and floating rate securities, and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Portfolio invests primarily in investment-grade debt securities, but may invest up to 10% of its total assets in high yield securities, also known as junk bonds, rated B or higher by Moodys Investors Service, Inc. (Moodys), or equivalently rated by Standard & Poors Global Rating (S&P) or Fitch, Inc. (Fitch), or, if unrated, determined by the Adviser or the Sub-Adviser to be of comparable quality (except that within such 10% limitation, the Portfolio may invest in mortgage-related securities rated below B). The Portfolio also may invest up to 30% of its total assets in securities denominated in foreign currencies and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Portfolio may invest up to 10% of its total assets in securities and instruments that are economically tied to emerging market countries (this limitation does not apply to investment grade sovereign debt denominated in the local currency with less than one year remaining to maturity, which means the Portfolio may invest, together with any other investments denominated in foreign currencies, up to 30% of its total assets in such instruments). The Portfolio will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets. Subject to applicable law and any other restrictions described in the Portfolios Prospectus or Statement of Additional Information, the Portfolio may invest without limitation in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage- or asset-backed securities. The Portfolios investments in derivatives may be deemed to involve the use of leverage because the Portfolio is not required to invest the full market value of the contract upon entering into the contract but participates in gains and losses on the full contract price. The use of derivatives also may be deemed to involve the use of leverage because the heightened price sensitivity of some derivatives to market changes may magnify the Portfolios gain or loss. It is not expected, however, that the Portfolio will be leveraged by borrowing money for investment purposes. The Portfolios investments in derivatives may require it to maintain a percentage of its assets in cash, cash equivalent instruments or other liquid assets to serve as margin or collateral for the Portfolios obligations under derivative transactions. The Portfolio may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as sale-buyback or dollar roll transactions). In sale-buyback and dollar roll transactions, the Portfolio sells a security to another party and simultaneously agrees to repurchase the same security (in the case of a sale-buyback) or a similar, but not the same, security (in the case of a dollar roll) on a specified date and pre-determined price. The Portfolio may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Portfolio may also invest up to 10% of its total assets in preferred securities. The U.S. Treasury uses the Consumer Price Index for Urban Consumers as the inflation measure. Inflation-indexed bonds issued by a foreign government are generally adjusted to reflect a comparable inflation index, calculated by that government. Real return equals total return less the estimated cost of inflation, which is typically measured by the change in an official inflation measure. Duration is a measure used to determine the sensitivity of a securitys price to changes in interest rates. The longer a securitys duration, the more sensitive it will be to changes in interest rates, which may increase the volatility of the securitys value and may lead to losses. Effective duration, a common method of calculating duration, takes into account that for certain bonds expected cash flows will fluctuate as interest rates change and is defined in nominal yield terms, which is market convention for most bond investors and managers. Because market convention for bonds is to use nominal yields to measure effective duration, effective duration for real return bonds, which are based on real yields, are converted through a conversion factor. The resulting nominal duration typically can range from 20% and 90% of the respective real duration. All security holdings will be measured in nominal effective duration terms. Similarly, the effective duration of the Bloomberg U.S. TIPS Index will be calculated using the same conversion factors. The effective duration of the Portfolio normally varies within three years (plus or minus) of the effective duration of the securities comprising the Bloomberg U.S. TIPS Index, as calculated by the Sub-Adviser, which as of December 31, 2024, as converted, was 6.54 years. The Sub-Adviser may sell a security for a variety of reasons, such as to make other investments believed by the Sub-Adviser to offer superior investment opportunities. Show less