Which Shanghai index fell sharply after China's 2015 stock-market peak on June 12?

The Shanghai Composite fell sharply after China's 2015 stock-market peak on June 12.

The index reached 5,178.19 on June 12, 2015, after rising dramatically from the previous year. The rally was fueled by retail participation, margin financing and expectations that policy support would continue. As prices turned downward, leveraged investors faced forced selling and confidence weakened.

Chinese authorities responded with measures including trading suspensions, restrictions on certain share sales and efforts to support major companies. The market remained volatile through the summer, and the August 24, 2015 sell-off became one of the crisis's most widely remembered sessions. Global markets also fell amid concerns about China's economy and the effects of the turmoil on international growth.

The Shanghai Composite is not the same as the Shenzhen Component or Hong Kong's Hang Seng Index. It tracks shares listed on the Shanghai Stock Exchange, while the other indexes represent different markets and sets of companies. The 2015 episode was a major correction and financial shock, not a single-day crash equivalent to 1987's Black Monday.