 Ironwood Pharmaceuticals, Inc. NASDAQ:IRWD saw a significant drop in short interest during the month of July. As of July 31st, there was short interest totalling 24,840,000 shares, a drop of 6.5 from the July 15th total of 26,560,000 shares. Based on an average daily trading volume, of 2,120,000 shares, the short-interest ratio is currently 11.7 ... 