Strategy. Under normal circumstances, the Portfolio will invest at least 80% of its net assets, plus borrowings for investment purposes, in securities of mid-capitalization companies. For purposes of this Portfolio, mid-capitalization companies typically are companies with market capitalizations within the capitalization range of the companies in the Russell Midcap Growth Index at the time of purchase. As of December 31, 2024, the market capitalizations of the companies in the Russell Midcap Growth Index ranged from approximately $ 1.65 billion to $175 billion. The size of companies in the index changes with market conditions, which can result in changes to the market capitalization range of companies in the index. The Portfolio normally invests primarily in equity securities, which include common stocks, equity … Show more… Under normal circumstances, the Portfolio will invest at least 80% of its net assets, plus borrowings for investment purposes, in securities of mid-capitalization companies. For purposes of this Portfolio, mid-capitalization companies typically are companies with market capitalizations within the capitalization range of the companies in the Russell Midcap Growth Index at the time of purchase. As of December 31, 2024, the market capitalizations of the companies in the Russell Midcap Growth Index ranged from approximately $ 1.65 billion to $175 billion. The size of companies in the index changes with market conditions, which can result in changes to the market capitalization range of companies in the index. The Portfolio normally invests primarily in equity securities, which include common stocks, equity interests in real estate investment trusts (REITS), and other securities that represent an ownership interest (or the right to acquire an ownership interest) in a company or other issuer, such as rights, warrants and depositary receipts. The Sub-Adviser focuses on investing the Portfolios assets in the stocks of companies that the Sub-Adviser believes have above average earnings growth potential compared to other companies (i.e., growth companies). Growth companies tend to have stock prices that are high relative to their earnings, dividends, book value, or other financial measures. The Sub-Adviser generally invests the Portfolios assets in approximately 35 to 65 companies and may invest a significant percentage of the Portfolios assets in a single issuer or a small number of issuers. The Sub-Adviser normally invests the Portfolios assets across different industries and sectors, but the Sub-Adviser may invest a significant percentage of the Portfolios assets in issuers in a single or small number of industries or sectors, such as the information technology sector. The Sub-Adviser may invest the Portfolios assets in foreign securities. The Sub-Adviser uses an active bottom-up investment approach to buying and selling investments for the Portfolio. Investments are selected primarily based on fundamental analysis of individual issuers and their potential in light of their financial condition, and market, economic, political, and regulatory conditions. Factors considered may include analysis of an issuers earnings, cash flows, competitive position, and management ability. The Sub-Adviser may also consider environmental, social, and governance (ESG) factors in its fundamental investment analysis where the Sub-Adviser believes such factors could materially impact the economic value of an issuer. ESG factors considered may include, but are not limited to, climate change, resource depletion, an issuers governance structure and practices, data protection and privacy issues, and diversity and labor practices. Quantitative screening tools that systematically evaluate an issuers valuation, price and earnings momentum, earnings quality, and other factors, may also be considered. The Sub-Adviser may sell a security for a variety of reasons, such as to secure gains, limit losses, or redeploy assets into opportunities the Sub-Adviser believes to be more promising, among others. Show less