On Tuesday, July 28, the Shanghai Composite Index opened down 35.11 points, or 0.91%, at 3823.13. The Shenzhen Component Index opened down 318.38 points, or 2.25%, at 13830.35. The CSI 300 Index opened down 78.63 points, or 1.67%, at 4623.8. The ChiNext Index opened down 111.92 points, or 3.12%, at 3478.86. The STAR Market 50 Index opened down 52.08 points, or 2.88%, at 1755.87.