Arbutus Biopharma Corp. (NASDAQ:ABUS) was the recipient of a large increase in short interest during the month of July. As of July 29th, there was short interest totalling 1,453,661 shares, an increase of 25.4% from the July 15th total of 1,158,880 shares. Based on an average trading volume of 96,574 shares, the short-interest ratio is […]