 John B. Sanfilippo Son, Inc. NASDAQ:JBSS was the recipient of a significant drop in short interest in March. As of March 31st, there was short interest totalling 679,600 shares, a drop of 13.7 from the March 15th total of 787,100 shares. Based on an average daily trading volume, of 99,300 shares, the short-interest ratio ... 