The investment seeks daily investment results that correspond to three times the inverse (-3x) of the daily performance of the S&P 500®.
The fund invests in derivatives that ProShare Advisors believes, in combination, should have similar daily return characteristics as three times the inverse (-3x) of the daily return of the index. The index is a measure of large-cap U.S. stock market performance. It is a float-adjusted, market capitalization-weighted index of 500 U.S. operating companies and real estate investment trusts selected through a mechanical process. The fund is non-diversified.
Links:  http://www.globalfunddata.com/funds/new/performance/management?variant=ProShares
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 http://www.globalfunddata.com/funds/new/performance/fund_administrator?variant=J. P. Morgan Chase Bank, N.A.
 http://www.globalfunddata.com/funds/new/performance/strategy?variant=Trading-Inverse Equity
 http://www.globalfunddata.com/funds/new/performance/structure?variant=Open Ended Investment Company
 http://www.globalfunddata.com/funds/new/performance/city?variant=Bethesda___United States
 http://www.globalfunddata.com/funds/new/performance/country?variant=United States
 http://www.globalfunddata.com/funds/new/performance/custodian?variant=J. P. Morgan Chase Bank, N.A.
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