Shares of holding company Prosus /zigman2/quotes/214038022/delayed NL:PRX -5.21% surged 15% in Amsterdam trade after announcing a stock buyback program funded by the sale of Tencent /zigman2/quotes/204605823/delayed HK:700 -0.13% shares and saying it sold its entire JD.com /zigman2/quotes/205122565/composite JD -1.78% stake for $3.7 billion. Prosus and parent Naspers say that if the stock buyback plan had been in existence over the past three months, the resulting Tencent shares would averaged between 3% and 5% of average daily traded volumes. Prosus holds 29% of Tencent.







