On Monday, October 12, the Shanghai Composite Index opened down 6.81 points, or 0.18%, at 3806.98. The Shenzhen Component Index opened down 54.9 points, or 0.43%, at 12586.96. The CSI 300 Index opened down 11.34 points, or 0.26%, at 4305.91. The ChiNext Index opened down 19.83 points, or 0.65%, at 3023.51. The STAR Market 50 Index opened down 13.46 points, or 0.92%, at 1443.81.