The long calm in Chinese stocks came to an abrupt end Thursday, with shares in Shanghai suffering their biggest one-day drop in almost a year, following fresh signs of Beijing’s determination to clamp down on market speculation and the country’s high debt levels. The Shanghai Composite closed down 2.3% at a two-month low, the first time since Aug. 25 that the index has moved more than 1% up or down. It was the market’s largest single-day drop since Dec. 12. Shares in Shenzhen meanwhile dropped 2.9%, finishing at their lowest...

Source: Wall Street Journal November 23, 2017 11:26 UTC