OptiNose, Inc. (NASDAQ:OPTN – Get Free Report) was the recipient of a significant growth in short interest in the month of September. As of September 15th, there was short interest totalling 4,550,000 shares, a growth of 23.3% from the August 31st total of 3,690,000 shares. Based on an average trading volume of 400,600 shares, the […]