The investment seeks daily investment results, before fees and expenses, that correspond to two times the inverse (-2x) of the daily performance of the S&P Real Estate Select Sector Index. The fund invests in financial instruments that ProShare Advisors believes, in combination, should produce daily returns consistent with the Daily Target. The index is constructed and maintained by S&P Dow Jones Indices LLC. The index represents the real estate sector of the S&P 500 Index. The fund is non-diversified.