KeyBanc analyst Hans Chung noted that Alibaba (BABA) reported in a 13-F filing last Friday that the company purchased about 2.58M ADS shares of CooTek (CTK) during the fourth quarter. He sees positive implications from Alibaba having accumulated about 4% of CooTek's shares outstanding, including the fact that this is further validation of the business model and overseas market position. Also, this could potentially open up a new opportunity as Alibaba "typically invests in companies with strategic value or potential synergy to its ecosystems," Chung tells investors. He maintains an Overweight rating on CooTek shares.