Short interest in Innovator U.S. Equity Ultra Buffer ETF - May (BATS:UMAY) increased during the last reporting period, rising from 38.63K to 40.13K. This put -% of the company's publicly available shares short.

Based on the recent average volume of 9.44K shares traded per day, it would take 4.25 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.