China's benchmark stock indices ended the day lower across the board. The benchmark Shanghai Comp ended the morning down 24.99 points or 0.89 pct at 2,776.83. The Shanghai a was down 26.21 points or 0.89 pct at 2,912.83 , while the Shenzhen A fell 6.21 points or 0.71 pct to 870.25.