Chinanews Client, September 4th. On September 4, affected by the overnight drop in U.S. stocks, the three major A-share indexes opened lower one after another. The Shanghai Composite Index fell 1.43% to 3336.41 points; Shenzhen Component Index fell 1.96% to 13501.91 points; Entrepreneurship The board index fell 2.06% to 2,690.29 points.