DexCom, Inc. (NASDAQ:DXCM – Get Free Report) was the recipient of a significant increase in short interest in October. As of October 31st, there was short interest totalling 21,060,000 shares, an increase of 30.7% from the October 15th total of 16,110,000 shares. Based on an average daily volume of 5,030,000 shares, the short-interest ratio is […]