A stock investor follows information in a stock trading hall in Hangzhou, capital city of east China's Zhejiang Province, May 5, 2015. Chinese shares tumbled on Tuesday, with the benchmark Shanghai Composite Index down by 4.06 percent to finish at 4,298.71 points, and the Shenzhen Component Index fell 4.22 percent to close at 14,233.1 points. (Photo: Xinhua/Long Wei)
