China Online Education Group (NYSE:COE – Get Rating) saw a large drop in short interest in July. As of July 31st, there was short interest totalling 233,600 shares, a drop of 13.4% from the July 15th total of 269,900 shares. Based on an average daily volume of 73,000 shares, the short-interest ratio is presently 3.2 days. Currently, 2.7% of the company’s stock are short sold. China Online Education Group Price Performance Shares of NYSE COE traded down $0.05 during midday trading on Wednesday, hitting $1.57. 811 shares of the company’s stock were exchanged, compared to its average volume of 55,394....