On Tuesday, June 30, the Shanghai Composite Index opened down 15.73 points, or 0.39%, at 4058.17. The Shenzhen Component Index opened down 1.2 points, or 0.01%, at 15811.67. The CSI 300 Index opened down 12.43 points, or 0.25%, at 4914.49. The ChiNext Index opened up 0.94 points, or 0.02%, at 4217.63. The STAR Market 50 Index opened up 6.87 points, or 0.32%, at 2132.88.