China Markets Slump to 5-Year Lows as Regulator Promises to Protect Small Investors

A pedestrian and office buildings are reflected on a brokerage house's window as an electronic board displaying Shanghai shares trading index in Beijing, Feb. 5, 2024.

Chinese shares gyrated on Monday, sinking to 5-year lows after market regulators sought to reassure jittery investors with a promise to crack down on stock price manipulation and "malicious short selling."