Rockhopper Exploration plc (OTCMKTS:RCKHF – Get Free Report) was the target of a large decrease in short interest in May. As of May 15th, there was short interest totalling 300 shares, a decrease of 93.8% from the April 30th total of 4,800 shares. Based on an average daily volume of 4,300 shares, the days-to-cover ratio […]