Under normal market conditions, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities (such as common stocks, securities convertible into common or preferred stocks and warrants) of companies that, when purchased, have capitalizations within the range of Standard & Poor's 500 Index as measured by market capitalization. It may invest up to 45% of its assets in securities of non-U.S. issuers, including American Depositary Receipts ("ADRs"). The fund may invest no more than 25% of its assets in securities of non-U.S. issuers other than ADRs.