China's Shanghai Composite Index closed down 51.65 points, or 1.25%, at 4093.73 on Wednesday, May 27. The Shenzhen Component Index closed down 139.69 points, or 0.88%, at 15736.47 on Wednesday, May 27. The CSI 300 Index closed down 39.68 points, or 0.8%, at 4908.17 on Wednesday, May 27. The ChiNext Index closed up 2.71 points, or 0.07%, at 4045.77 on Wednesday, May 27. The STAR Market 50 Index closed down 52.26 points, or 2.8%, at 1815.45 on Wednesday, May 27.