Short interest in ProShares Ultra S&P500 (ARCA:SSO) decreased during the last reporting period, falling from 2.41M to 1.53M. This put -% of the company's publicly available shares short.

Short interest for ProShares Ultra S&P500 gives investors a sense of the degree to which investors are betting on the decline of ProShares Ultra S&P500's stock. Short interest data is updated every two weeks.

Based on the recent average volume of 1.83M shares traded per day, it would take 1 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.