China's Shanghai Composite Index opened down 3.74 points, or 0.09%, at 4174.18 on Friday, May 15. The Shenzhen Component Index opened up 7.46 points, or 0.05%, at 15753.19. The CSI 300 Index opened down 2.97 points, or 0.06%, at 4911.62. The ChiNext Index opened up 6.6 points, or 0.17%, at 3957.74. The STAR Market 50 Index opened down 0.73 points, or 0.04%, at 1724.36.