Under normal circumstances, the fund invests at least 80% of its assets in equity securities of small-capitalization U.S. companies. It may invest in any economic sector, and at times may emphasize one or more particular sectors. The fund also may invest in: (a) securities of foreign issuers, including foreign issuers located in emerging markets, either directly through investments in foreign currency-denominated securities traded outside of the U.S. or indirectly through depositary receipts; (b) real estate investment trusts; (c) initial public offerings; and (d) master limited partnerships.