Under normal circumstances, the Fund seeks to invest at least 80 percent of its net assets plus the amount of any borrowings for investment purposes in U.S.-listed equity securities and derivatives that have similar economic characteristics to such securities. The Fund will normally hold common stock of those companies that fall in the industries that make up the MSCI USA Index but at times may hold common stock of those companies that fall in the industries that make up the Russell 3000 Index. The Fund may also invest in other securities, including but not limited to, exchange traded funds (ETFs), cash and cash equivalents, including shares of money market funds advised by BFA or its affiliates.