The Coretec Group Inc. (OTCMKTS:CRTG – Get Rating) was the target of a large drop in short interest in April. As of April 15th, there was short interest totalling 9,700 shares, a drop of 47.0% from the March 31st total of 18,300 shares. Based on an average daily trading volume, of 166,100 shares, the short-interest […]