Norsk Hydro ASA (OTCMKTS:NHYDY – Get Free Report) was the recipient of a significant drop in short interest in May. As of May 15th, there was short interest totalling 15,800 shares, a drop of 65.7% from the April 30th total of 46,000 shares. Based on an average trading volume of 187,900 shares, the days-to-cover ratio […]