DexCom, Inc. (NASDAQ:DXCM – Get Rating) was the target of a significant increase in short interest in April. As of April 30th, there was short interest totalling 12,730,000 shares, an increase of 5.4% from the April 15th total of 12,080,000 shares. Based on an average trading volume of 2,350,000 shares, the short-interest ratio is presently […]