Osisko Mining Inc. (OTCMKTS:OBNNF – Get Free Report) saw a significant increase in short interest in May. As of May 15th, there was short interest totalling 4,194,100 shares, an increase of 18.9% from the April 30th total of 3,526,600 shares. Based on an average daily volume of 267,800 shares, the days-to-cover ratio is currently 15.7 […]