The fund invests at least 80% of its net assets, plus the amount of borrowings for investment purposes, in securities of dividend paying companies that comprise the index at the time of initial purchase. The index consists of common stock of companies, and units of beneficial ownership in real estate investment trusts ("REITs"), in the Dow Jones U.S. Large-Cap Total Stock Market Index SM and the Dow Jones U.S. Mid-Cap Total Stock Market Index SM.