The fund invests at least 80% of its net assets, plus any borrowings for investment purposes, in equity securities and other instruments that have economic characteristics similar to equity securities. It invests primarily in equity securities of U.S. and foreign issuers, and the fund may also invest up to 25% of its net assets in foreign securities. It may invest in the securities of issuers of all capitalization sizes; however, a substantial number of the issuers in which the fund invests are large-capitalization issuers.