What event is commonly called China’s 2015 stock-market crash?

The sharp 2015 collapse in Chinese share prices is commonly called the Chinese stock-market crash. The turmoil followed a rapid rise in mainland equities and then a steep reversal beginning in June 2015.

The Shanghai Composite Index had more than doubled from its 2014 level before falling sharply. Many individual investors had entered the market using borrowed money, increasing the impact of forced selling when prices declined. Authorities responded with trading restrictions, support measures, and investigations into market activity.

The episode is sometimes described as a single-day crash, but it was a prolonged period of turbulence extending into 2016. China’s mainland exchanges, especially Shanghai and Shenzhen, were central to the episode, although markets elsewhere also reacted to concerns about Chinese growth and global demand.