DermTech, Inc. (NASDAQ:DMTK – Get Free Report) saw a large drop in short interest during the month of May. As of May 15th, there was short interest totalling 2,850,000 shares, a drop of 7.8% from the April 30th total of 3,090,000 shares. Based on an average daily volume of 599,200 shares, the short-interest ratio is […]