BioSig Technologies, Inc. (NASDAQ:BSGM – Get Free Report) saw a significant drop in short interest in the month of May. As of May 15th, there was short interest totalling 461,700 shares, a drop of 10.2% from the April 30th total of 514,300 shares. Based on an average daily volume of 1,120,000 shares, the short-interest ratio […]