中国上证综指7月31日（周四）收盘下跌42.51点，跌幅：1.18%，报3573.21点；中国深证成指7月31日（周四）收盘下跌193.26点，跌幅：1.73%，报11009.77点；中国沪深300指数7月31日（周四）收盘下跌75.65点，跌幅：1.82%，报4075.59点；中国创业板指数7月31日（周四）收盘下跌39.37点，跌幅：1.66%，报2328.31点；中国科创50指数7月31日（周四）收盘下跌10.7点，跌幅：1.01%，报1047.87点。

Market Performance Summary - The Shanghai Composite Index closed at 3573.21 points on July 31, down by 42.51 points, a decline of 1.18% [1] - The Shenzhen Component Index closed at 11009.77 points, down by 193.26 points, a decline of 1.73% [1] - The CSI 300 Index closed at 4075.59 points, down by 75.65 points, a decline of 1.82% [1] - The ChiNext Index closed at 2328.31 points, down by 39.37 points, a decline of 1.66% [1] - The STAR 50 Index closed at 1047.87 points, down by 10.7 points, a decline of 1.01% [1]