SHANGHAI: The benchmark stock index rebounded from its biggest loss in almost three months yesterday on speculation Tuesday's decline was excessive relative to earnings prospects.

SAIC Motor Co rallied 2.9 percent to 25.04 yuan while Jiangxi Copper Co added 3.8 percent to 43.89 yuan.

The Shanghai Composite Index rose 66.64, or 2.07 percent, to close at 3290.17, after changing direction at least nine times. The measure plunged 3.5 percent on Tuesday, the most since Aug 31, on concern banks will sell more shares to replenish capital.