ProShares UltraPro S&P500 seeks daily investment results, before fees and expenses, that correspond to three times (3x) the daily performance of the S&P 500 Index. The fund invests in financial instruments that ProShare Advisors believes, in combination, should produce daily returns consistent with the fund’s investment objective. The index is a measure of large-cap U.S. stock market performance. The fund is non-diversified.