Short interest in ProShares UltraShort Euro (ARCA:EUO) increased during the last reporting period, rising from 12.82K to 13.05K. This put -% of the company's publicly available shares short.

Based on the recent average volume of 5.91K shares traded per day, it would take 2.21 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.