 The Ensign Group, Inc. NASDAQ:ENSG was the recipient of a large decrease in short interest in the month of May. As of May 29th, there was short interest totalling 1,110,000 shares, a decrease of 14.0 from the May 14th total of 1,290,000 shares. Based on an average daily volume of 480,700 shares, the short-interest ratio ... 