What was the name of China's 2015 stock-market crash, when the Shanghai Composite fell sharply?

The 2015 Chinese stock market crash was the sharp decline in Chinese share prices that began after a major rise earlier that year.

The Shanghai Composite more than doubled from mid-2014 to its peak on 12 June 2015. The rally was fueled by margin financing, retail speculation, and expectations that economic reforms would support higher valuations. When prices reversed, leveraged investors faced margin calls and rushed to sell.

The Shanghai Composite fell about 32% between 12 June and 9 July 2015. Turbulence continued into 2016, and a market sell-off in January 2016 contributed to worldwide concern about China’s growth and financial stability.

Chinese authorities responded with measures including restrictions on share sales, investigations into market activity, and support for selected purchases. The episode is often grouped with the 2015–2016 Chinese stock-market turbulence rather than treated as a single one-day crash.