CTI BioPharma Corp. (NASDAQ:CTIC – Get Rating) was the target of a large increase in short interest in May. As of May 31st, there was short interest totalling 11,270,000 shares, an increase of 39.5% from the May 15th total of 8,080,000 shares. Based on an average trading volume of 5,510,000 shares, the short-interest ratio is […]