Oncotelic Therapeutics, Inc. (OTCMKTS:OTLC – Get Free Report) was the target of a large growth in short interest in May. As of May 31st, there was short interest totalling 2,400 shares, a growth of 500.0% from the May 15th total of 400 shares. Based on an average trading volume of 242,700 shares, the short-interest ratio […]