The investment seeks daily investment results, before fees and expenses, that correspond to the inverse (-1x) of the daily performance of the MSCI Emerging Markets Index®. The fund invests in derivatives that ProShare Advisors believes, in combination, should have similar daily return characteristics as the inverse (-1x) of the daily return of the index. The index includes 85% of free float-adjusted market capitalization in each industry group in emerging market countries. The fund is non-diversified.