Sio Gene Therapies Inc. (NASDAQ:SIOX) saw a significant decline in short interest in the month of November. As of November 30th, there was short interest totalling 679,900 shares, a decline of 29.7% from the November 15th total of 967,300 shares. Approximately 2.3% of the shares of the company are sold short. Based on an average trading volume of 1,230,000 shares, the short-interest ratio is presently 0.6 days.