On Tuesday, July 21, the Shanghai Composite Index opened 15.88 points higher, or 0.42%, at 3812.16. The Shenzhen Component Index opened 45.85 points higher, or 0.34%, at 13656.08. The CSI 300 Index opened 32.53 points higher, or 0.71%, at 4630.85. The ChiNext Index opened 26.12 points higher, or 0.76%, at 3469.22. The STAR Market 50 Index opened 28.8 points higher, or 1.68%, at 1747.49.