 Aimmune Therapeutics Inc NASDAQ:AIMT was the recipient of a significant growth in short interest in March. As of March 31st, there was short interest totalling 15,470,000 shares, a growth of 8.9 from the March 15th total of 14,208,700 shares. Based on an average daily volume of 1,840,000 shares, the days-to-cover ratio is presently 8.4 days. ... 