China Online Education Group (NYSE:COE) saw a significant increase in short interest during the month of November. As of November 15th, there was short interest totalling 271,800 shares, an increase of 21.9% from the October 31st total of 223,000 shares. Approximately 12.1% of the shares of the stock are short sold. Based on an average daily volume of 635,700 shares, the short-interest ratio is presently 0.4 days. NYSE COE traded down $0.29 on Friday, reaching $1.39. 431,954 shares of the company’s stock traded hands, compared to its average volume of 237,622. China Online Education Group has a 12 month low…