 Aerie Pharmaceuticals Inc NASDAQ:AERI was the recipient of a significant increase in short interest in April. As of April 15th, there was short interest totalling 9,720,000 shares, an increase of 5.1 from the March 31st total of 9,250,000 shares. Based on an average daily trading volume, of 962,900 shares, the short-interest ratio is presently 10.1 ... 