The 2015 Chinese stock-market crash began on 12 June 2015, after the Shanghai Composite reached a major peak.
Chinese mainland shares had risen dramatically during the preceding months, supported by margin borrowing and strong retail-investor participation. The Shanghai Composite peaked on 12 June, then entered a steep decline. Authorities responded with measures including trading restrictions, intervention by state-linked funds, and changes affecting initial public offerings and short selling.
The turmoil continued into the summer and resurfaced in early 2016. On 24 August 2015, often called Black Monday in China and internationally, the Shanghai Composite fell 8.49 percent. The market stress also affected global investor sentiment and commodity prices.
The starting date is sometimes confused with the most dramatic later sessions. The crash’s commonly cited beginning is the June peak, while August 24 marks one of its most visible international spillovers.