Rockhopper Exploration plc (OTCMKTS:RCKHF – Get Free Report) was the recipient of a large growth in short interest in June. As of June 30th, there was short interest totalling 131,500 shares, a growth of 1,269.8% from the June 15th total of 9,600 shares. Based on an average daily volume of 16,400 shares, the short-interest ratio […]