中国上证综指7月4日（周五）开盘下跌1.56点，跌幅：0.05%，报3459.59点；中国深证成指7月4日（周五）开盘上涨0.41点，跌幅：0%，报10534.99点；中国沪深300指数7月4日（周五）开盘下跌0.6点，跌幅：0.02%，报3967.46点；中国创业板指数7月4日（周五）开盘上涨4.26点，涨幅：0.2%，报2168.35点；中国科创50指数7月4日（周五）开盘下跌0.42点，跌幅：0.04%，报984.53点。

Market Performance Summary - The Shanghai Composite Index opened at 3459.59 points, down by 1.56 points, a decrease of 0.05% on July 4 [1] - The Shenzhen Component Index opened at 10534.99 points, up by 0.41 points, showing no percentage change [1] - The CSI 300 Index opened at 3967.46 points, down by 0.6 points, a decrease of 0.02% [1] - The ChiNext Index opened at 2168.35 points, up by 4.26 points, an increase of 0.2% [1] - The STAR 50 Index opened at 984.53 points, down by 0.42 points, a decrease of 0.04% [1]