OC Oerlikon Co. AG (OTCMKTS:OERLF – Get Rating) saw a significant increase in short interest during the month of May. As of May 15th, there was short interest totalling 46,600 shares, an increase of 106.2% from the April 30th total of 22,600 shares. Based on an average daily trading volume, of 3,600 shares, the days-to-cover […]