The fund's primary objective is to enhance the value of its shares, complemented by a secondary goal of income generation. Under typical market conditions, at least 80% of the fund's investments will be allocated to common stocks of U.S. companies categorized as mid-cap. A mid-cap company is defined, at the time of acquisition, as possessing a market capitalization between $1.5 billion and $12 billion, or falling within the market capitalization range represented by the Russell Midcap® Index.