Short interest in Hennessy Advisors Inc (NASDAQ:HNNA) increased during the last reporting period, rising from 3.38K to 4.62K. This put 0.09% of the company's publicly available shares short.

Based on the recent average volume of 6.50K 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.