Under normal circumstances, the fund seeks to achieve its investment objective by investing primarily in long and short futures and call and put options on futures on the S&P 500 Index; futures contracts on the Cboe Volatility Index; and cash and cash equivalents. It may also invest in securities that represent the return of a securities index; volatility exchange traded funds; and income securities of any maturity or credit quality, and investment companies that invest in such income securities (including affiliated and unaffiliated investment companies).