 Aimmune Therapeutics Inc NASDAQ:AIMT saw a significant growth in short interest in the month of April. As of April 15th, there was short interest totalling 16,550,000 shares, a growth of 7.0 from the March 31st total of 15,470,000 shares. Based on an average daily trading volume, of 1,810,000 shares, the short-interest ratio is currently 9.1 ... 