Opsens Inc. (OTCMKTS:OPSSF – Get Free Report) was the target of a significant growth in short interest during the month of November. As of November 15th, there was short interest totalling 21,400 shares, a growth of 26.6% from the October 31st total of 16,900 shares. Based on an average trading volume of 168,500 shares, the […]