Powertap Hydrogen Capital Corp. (OTCMKTS:MOTNF – Get Rating) saw a large drop in short interest during the month of March. As of March 31st, there was short interest totalling 16,600 shares, a drop of 20.2% from the March 15th total of 20,800 shares. Based on an average daily volume of 38,500 shares, the short-interest ratio […]