中国上证综指7月21日（周一）开盘上涨8.33点，涨幅：0.24%，报3542.82点；中国深证成指7月21日（周一）开盘上涨23.76点，涨幅：0.22%，报10937.6点；中国沪深300指数7月21日（周一）开盘上涨11.22点，涨幅：0.28%，报4069.77点；中国创业板指数7月21日（周一）开盘上涨8.26点，涨幅：0.36%，报2285.41点；中国科创50指数7月21日（周一）开盘上涨0.05点，涨幅：0.0%，报1007.58点。

Market Performance - The Shanghai Composite Index opened on July 21, 2023, with an increase of 8.33 points, representing a rise of 0.24%, closing at 3542.82 points [1] - The Shenzhen Component Index opened with an increase of 23.76 points, reflecting a rise of 0.22%, closing at 10937.6 points [1] - The CSI 300 Index opened with an increase of 11.22 points, indicating a rise of 0.28%, closing at 4069.77 points [1] - The ChiNext Index opened with an increase of 8.26 points, showing a rise of 0.36%, closing at 2285.41 points [1] - The STAR 50 Index opened with a slight increase of 0.05 points, with no significant change, closing at 1007.58 points [1]