Aptevo Therapeutics Inc. (NASDAQ:APVO – Get Free Report) saw a significant growth in short interest during the month of March. As of March 15th, there was short interest totalling 28,900 shares, a growth of 725.7% from the February 29th total of 3,500 shares. Based on an average trading volume of 91,700 shares, the days-to-cover ratio […]