Strategy. Principal Investment Strategies The Fund invests primarily in equity securities of smaller companies that the Funds subadvisers believe offer potential for long-term growth. Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in the equity securities of companies whose market capitalizations at the time of purchase are within the market capitalization range of companies included in the Russell 2000 Index or the S&P SmallCap 600 Index (as of December 31, 2025, between $ 5.61 million and $31.15 billion ). Equity securities may include common stocks, preferred stocks, securities convertible into common or preferred stock, rights, and warrants. While most assets typically will be invested in common stocks … Show more… Principal Investment Strategies The Fund invests primarily in equity securities of smaller companies that the Funds subadvisers believe offer potential for long-term growth. Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in the equity securities of companies whose market capitalizations at the time of purchase are within the market capitalization range of companies included in the Russell 2000 Index or the S&P SmallCap 600 Index (as of December 31, 2025, between $ 5.61 million and $31.15 billion ). Equity securities may include common stocks, preferred stocks, securities convertible into common or preferred stock, rights, and warrants. While most assets typically will be invested in common stocks of U.S. companies, the Fund also may invest up to 20% of its total assets in foreign securities, including emerging market securities. The Fund may at times have significant exposure to one or more industries or sectors. The Fund may hold a portion of its assets in cash or cash equivalents. The Fund is managed by two ?subadvisers, Wellington Management Company LLP (Wellington Management) and Invesco Advisers, Inc. (Invesco Advisers), each being responsible for a portion of the portfolio, although they may manage different amounts of the Funds assets. Each subadviser employs a growth-based investment approach and may perform a number of analyses in considering whether to buy or sell a security for the Fund. Wellington Management uses a combination of fundamental and quantitative analyses to identify small-cap companies that it believes are experiencing or will experience rapid earnings or revenue growth. Invesco Advisers uses a bottom-up stock selection process. The bottom-up approach focuses on fundamental analysis of individual issuers before considering the impact of overall economic, market, or industry trends. Each subadviser may consider selling a security for the Fund if, for example, in its judgment, target prices are reached, future upside potential is limited, company fundamentals are no longer attractive, superior purchase candidates are identified, or market capitalization ceilings are exceeded. Show less