On Wednesday, December 17, the Shanghai Composite Index opened down 2.3 points, or 0.06%, at 3822.51. The Shenzhen Component Index opened up 12.73 points, or 0.1%, at 12927.39. The CSI 300 Index opened up 2.22 points, or 0.05%, at 4499.77. The ChiNext Index opened up 0.86 points, or 0.03%, at 3072.62. The STAR Market 50 Index opened up 1.32 points, or 0.1%, at 1294.7.