China Online Education Group (NYSE:COE) saw a large increase in short interest during the month of August. As of August 13th, there was short interest totalling 178,800 shares, an increase of 121.6% from the July 29th total of 80,700 shares. Currently, 8.0% of the company’s stock are short sold. Based on an average daily trading volume, of 377,200 shares, the short-interest ratio is currently 0.5 days. COE has been the subject of a number of analyst reports. Needham & Company LLC decreased their price objective on shares of China Online Education Group from $36.00 to $32.00 and set a “buy”…