Masco Co. (NYSE:MAS – Get Free Report) was the recipient of a large decrease in short interest in May. As of May 15th, there was short interest totalling 4,650,000 shares, a decrease of 29.5% from the April 30th total of 6,600,000 shares. Based on an average daily trading volume, of 1,950,000 shares, the days-to-cover ratio […]