|ProShares Short MidCap400|
|The investment seeks daily investment results that correspond to the inverse (-1x) of the daily performance of the S&P MidCap400Â®.
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 is a measure of mid-size company U.S. stock market performance. It is a float-adjusted, market capitalization-weighted index of 400 U.S. operating companies and real estate investment trusts selected through a mechanical process. The fund is non-diversified.|
| ||MYY||Category Avg|
|Annual Report Expense Ratio (net)||0.95%||N/A|
|Annual Holdings Turnover||N/A||N/A|
|Total Net Assets||NaN||N/A|