The Coretec Group Inc. (OTCMKTS:CRTG – Get Rating) was the recipient of a significant growth in short interest in the month of March. As of March 31st, there was short interest totalling 18,300 shares, a growth of 18,200.0% from the March 15th total of 100 shares. Based on an average daily volume of 652,800 shares, […]