The Fund invests at least 80 percent of its net assets, plus the amount of any borrowings for investment purposes, in the securities of the DJIA Cboe BuyWrite v2 Index (the Underlying Index). The Fund's 80 percent investment policy is non-fundamental and requires 60 days prior written notice to shareholders before it can be changed.The Underlying Index measures the performance of a covered call strategy that holds a theoretical portfolio of the underlying stocks of the Dow Jones Industrial Average (the Reference Index) and writes (or sells) a succession of one-month at-the-money (ATM) covered call options on the Reference Index. The Underlying Index specifically reflects the performance of the component securities of the Reference Index, combined with written (sold) ATM call options corresponding to the value of the portfolio of stocks in the Reference Index. The Fund invests in the securities reflected in the Underlying Index, and cannot invest directly in the Underlying Index itself.