China Online Education Group (NYSE:COE) was the recipient of a significant decrease in short interest during the month of October. As of October 15th, there was short interest totalling 380,300 shares, a decrease of 22.4% from the September 30th total of 490,300 shares. Currently, 17.0% of the shares of the company are sold short. Based on an average daily trading volume, of 800,400 shares, the short-interest ratio is currently 0.5 days. NYSE:COE traded down $0.03 during trading hours on Tuesday, reaching $2.37. The company had a trading volume of 1,670 shares, compared to its average volume of 313,077. China Online...