v2.4.0.8

Organization (Tables) | 3 Months Ended
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Mar. 31, 2014
Accounting Policies [Abstract] |
Schedule of Share Splits and Reverse Share Splits | The table below includes Share splits and reverse Share splits for the Funds during the three months ended March 31, 2014 and year ended December 31, 2013. The ticker symbols for these Funds did not change and each Fund continues to trade on the NYSE Arca.
Fund |  | Execution Date (Prior to Opening of Trading) |  | Type of Split |  | Date Trading Resumed at Post- Split Price
ProShares UltraShort DJ-UBS Natural Gas |  | June 10, 2013 |  | 1-for-4 reverse Share split |  | June 10, 2013
ProShares Ultra Silver |  | January 21, 2014 |  | 1-for-4 reverse Share split |  | January 24, 2014
ProShares VIX Short-Term Futures ETF |  | June 10, 2013 |  | 1-for-5 reverse Share split |  | June 10, 2013
ProShares Ultra VIX Short-Term Futures ETF |  | June 10, 2013 |  | 1-for-10 reverse Share split |  | June 10, 2013
ProShares Ultra VIX Short-Term Futures ETF |  | January 21, 2014 |  | 1-for-4 reverse Share split |  | January 24, 2014
ProShares Short VIX Short-Term Futures ETF |  | January 21, 2014 |  | 2-for-1 Share split |  | January 24, 2014

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