China’s Shanghai Composite fell 8.5% on August 24, 2015, during the 2015 Chinese stock-market crash.
The index’s 8.49% one-day decline became known internationally as Black Monday. It followed a sharp reversal in Chinese equities after a major rally that had lifted share prices substantially during the preceding year. Concerns about economic growth, corporate earnings, market valuations, and the government’s intervention policies intensified selling.
The sell-off did not remain confined to mainland China. Stock indexes in Europe, the United States, and other markets also fell as investors worried about China’s economic outlook and the possibility of wider global weakness. China’s authorities used measures including interest-rate cuts, liquidity support, trading restrictions, and efforts to limit certain share sales. The 2015 episode is distinct from the 2007–08 global financial crisis and from the 2020 pandemic crash: it began as a sharp correction in Chinese equities amid concerns about growth and market structure.