Tivity Health, Inc. (NASDAQ:TVTY – Get Rating) saw a large increase in short interest in April. As of April 30th, there was short interest totalling 3,330,000 shares, an increase of 21.5% from the April 15th total of 2,740,000 shares. Based on an average daily volume of 907,500 shares, the days-to-cover ratio is currently 3.7 days. […]