Vertex Energy, Inc. (NASDAQ:VTNR – Free Report) was the recipient of a significant drop in short interest in the month of June. As of June 15th, there was short interest totalling 13,050,000 shares, a drop of 32.4% from the May 31st total of 19,310,000 shares. Based on an average daily trading volume, of 2,470,000 shares, […]