According to the case of Alibaba's investment in Sina Weibo last year, Alibaba, through its wholly-owned subsidiary, acquired preferred shares and common shares issued by Sina Weibo for US$586 million, accounting for 18% of the shares.

In this way, the value of Sina Weibo is about US$3.25 billion. Cao Guowei once said that Sina Weibo has 500 million registered users. In Sina Weibo, where zombie fans are everywhere, this number is obviously inflated. CNNIC's survey data shows that the number of mobile Weibo users is 196 million. Considering that mobile Weibo is currently the mainstream, the actual number of Sina Weibo users should be more than 200 million. The number of WeChat users should exceed 500 million, which is more than twice that of Sina Weibo. From this perspective alone, WeChat is worth at least US$8 billion. On the other hand, WeChat has more advantages than Sina Weibo in terms of monthly active users, user stickiness and business prospects, so the comparison valuation of US$8 billion is the minimum.