The Shenzhen Component Index on the Shenzhen Stock Exchange closed at 8,521.20 points on Thursday, down 21.67 points, or 0.25 percent. A Share Index: 9,650.54 points, down 24.54 points, or 0.25 percent; B Share Index: 5,806.30 points, down 5.23 points, or 0.09 percent; Total Turnover: 124.08 billion yuan (20.20 billion U.S. dollars).