On Tuesday, May 26, the Shanghai Composite Index opened down 15.25 points, or 0.37%, at 4137.32. The Shenzhen Component Index opened down 69.79 points, or 0.44%, at 15786.82. The CSI 300 Index opened down 21.48 points, or 0.44%, at 4900.12. The ChiNext Index opened down 18.03 points, or 0.45%, at 4003.13. The STAR Market 50 Index opened down 18.65 points, or 0.98%, at 1877.39.