China’s Shanghai Composite Index fell about 8.5% on August 24, 2015, during the Chinese stock-market turbulence.
The decline was widely nicknamed “Black Monday” in China. It followed a dramatic rise in Chinese shares and a sharp sell-off that had begun in June 2015. Concerns about economic growth, currency policy, corporate debt, and the sustainability of high valuations intensified the selling.
The Shanghai Composite continued to fall after August 24, while other markets around the world also recorded large losses. Chinese authorities responded with measures including interest-rate cuts, restrictions on some sales, and efforts to support liquidity.
The event is sometimes described as a single crash, but it was actually a prolonged episode lasting into 2016. It also involved more than mainland shares: global investors reacted to China’s economic importance and to the possibility that weaker Chinese demand would affect commodities and international companies.