Hong Kong stocks reverse early gains to end down     

The Hang Seng Index fell 0.43 percent, or 135.41 points, to end at 31,414.52.

The benchmark Shanghai Composite Index shed 0.29 percent, or 9.69 points, to 3,280.95 and the Shenzhen Composite Index, which tracks stocks on China's second exchange, fell 0.73 percent, or 13.72 points, to 1,858.61.