Short interest in First Trust Ultra Short Duration Municipal ETF (ARCA:FUMB) decreased during the last reporting period, falling from 169.24K to 156.28K. This put -% of the company's publicly available shares short.

Based on the recent average volume of 309.21K 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.