Short interest in Harbor Osmosis International Resource Efficient ETF (ARCA:EFFI) decreased during the last reporting period, falling from 5.42K to 4.89K. This put -% of the company's publicly available shares short.

Based on the recent average volume of 208.00 shares traded per day, it would take 23.49 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.