South African stocks slide in seesaw start to the week By Adelaide Changole (Bloomberg) – South Africa’s main stocks index declined 1% by 9:53am in Johannesburg, the biggest intraday decline in 2021, after a slump in Tencent Holdings Ltd. in Hong Kong pulled benchmark giant Naspers and its subsidiary, Prosus NV, lower. Tencent lost as much as 6.7% in Hong Kong on Tuesday, as traders took profit after Monday’s 11% surge, which was Tencent’s biggest in almost a decade. Investors were also concerned by comments by an adviser to China’s central bank indicating that excessive liquidity and ultra-low borrowing costs were creating bubbles in the stock market.