The Shangai Composite Index went up by 12 points or 0.31 percent on Wednesday to close at 3842 points. The rise was led by Guangzhou Automobile (4.46%), Jiangsu Hengrui (3.64%) and Anhui Conch Cement (3.42%). On the downside, the weakerst performers were China Fortune (-5.11%), Poly Real Estate (-0.86%) and China Coal (-0.79%).