CVS Health Co. (NYSE:CVS) saw a large decrease in short interest in the month of November. As of November 30th, there was short interest totalling 11,230,000 shares, a decrease of 23.8% from the November 15th total of 14,730,000 shares. Based on an average daily trading volume, of 5,360,000 shares, the short-interest ratio is presently 2.1 days.