Phillips 66 (NYSE:PSX - Get Free Report) was the target of a significant drop in short interest in the month of August. As of August 14th, there was short interest totaling 4,945,738 shares, a drop of 33.0% from the July 30th total of 7,381,797 shares. Based on an average daily trading volume, of 2,839,091 shares, the short-interest ratio is presently 1.7 days. Approximately 1.2% of the company's stock are short sold.