A woman smiles in a stock brokerage house in Shanghai, east China, yesterday. The benchmark Shanghai Composite Index closed up 7.27 percent, or 127.09 points, to finish at 1,874.80. The Shenzhen index advanced 6.50 percent, or 374.03 points, to close at 6,127.12 points after China unveiled a 4 trillion yuan (US$585.98 billion) plan over the weekend to sustain its economy. -Xinhua