9月4日上证指数早盘下跌1.97%，创业板指下跌3.2%，半导体、贵金属跌幅居前

Market Overview - The Shanghai Composite Index fell by 75.24 points, a decrease of 1.97%, closing at 3738.32 points with a trading volume of 689.45 billion [1] - The Shenzhen Component Index dropped by 295.1 points, down 2.37%, closing at 12176.9 points with a trading volume of 905.57 billion [1] - The ChiNext Index decreased by 92.74 points, a decline of 3.2%, closing at 2806.63 points with a trading volume of 454.90 billion [1] - The CSI 300 Index fell by 109.94 points, down 2.47%, closing at 4349.89 points with a trading volume of 488.29 billion [1] Sector Performance - The top five performing sectors were: - Tourism and Hotels: up 2.82% - Commercial Retail: up 2.79% - Batteries: up 2.46% - Food and Beverage: up 1.94% - Beauty and Personal Care: up 1.45% [1] - The bottom five performing sectors were: - Semiconductors: down 4.21% - Precious Metals: down 3.37% - Communication Equipment: down 2.73% - Aerospace: down 2.67% - Electronic Chemicals: down 2.46% [1]