Short interest in F/m Ultrashort Tax-Free Municipal ETF (NASDAQ:ZMUN) increased during the last reporting period, rising from 674.00 to 1.46K. This put -% of the company's publicly available shares short.

Based on the recent average volume of 4.32K 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.