BlackRock MuniVest Fund, Inc. (NYSE:MVF – Get Rating) saw a significant decline in short interest in the month of May. As of May 31st, there was short interest totalling 13,200 shares, a decline of 56.7% from the May 15th total of 30,500 shares. Based on an average daily volume of 119,900 shares, the days-to-cover ratio […]