Alvopetro Energy Ltd. (OTCMKTS:ALVOF – Get Free Report) saw a large drop in short interest in the month of May. As of May 15th, there was short interest totalling 1,600 shares, a drop of 78.9% from the April 30th total of 7,600 shares. Based on an average daily trading volume, of 32,100 shares, the days-to-cover […]