Which Chinese benchmark peaked on June 12, 2015, before the country’s major stock-market crash?

The Shanghai Composite peaked on June 12, 2015, before China’s major stock-market crash.

The Shanghai Composite Index reached 5,178.19 on June 12, 2015, after more than doubling over the preceding year. The rally was fueled by retail investor participation, margin borrowing, and expectations that policy would support economic growth. Many buyers used leverage, increasing the effects of falling prices.

The index then dropped sharply through the summer. On July 8, the Shanghai Composite closed at 3,507.19, a fall of more than 30% from its June peak. Chinese authorities responded with measures including restrictions on some share sales, support for brokerage purchases, and investigations into market activity. The episode is often called the 2015–2016 Chinese stock-market turbulence, and it affected mainland shares more directly than Hong Kong’s separate Hang Seng Index.