Short interest in JPMorgan Ultra-Short Municipal Income ETF (ARCA:JMST) increased during the last reporting period, rising from 189.60K to 552.19K. This put -% of the company's publicly available shares short.

Based on the recent average volume of 1.87M 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.