Anavex Life Sciences Corp. (NASDAQ:AVXL – Get Rating) saw a large increase in short interest in May. As of May 15th, there was short interest totalling 15,900,000 shares, an increase of 10.6% from the April 30th total of 14,380,000 shares. Based on an average daily trading volume, of 1,000,000 shares, the days-to-cover ratio is currently […]