https://www.reuters.com/article/us-naspers-tencent-holdings-stock/chinas-tencent-loses-51-billion-in-market-value-in-two-days-idUSKBN1GZ24Q >Tencent Holdings Ltd's shares fell more than 4 percent on Friday, wiping out around $23 billion of market value, after the Chinese internet firm's largest shareholder, Naspers Ltd , lowered its stake for the first time in 17 years.