Under normal circumstances, the fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in equity securities of small-cap companies. Equity securities are primarily common stock. The fund focuses on U.S. companies with total market capitalizations (number of shares outstanding multiplied by share price) that at the time of initial purchase fall within the range of companies in the Russell 2000 Index at reconstitution each June.