SHANGHAI: Renewable energy stocks have enjoyed a joyride over the past five days on speculation US President Barack Obama's maiden visit would speed China's efforts at going green.

Most green technology-related stocks, such as nuclear and wind energy, rose yesterday. All 10 nuclear power companies' shares, for instance, advanced, led by Shenzhen Woer Heat Shrinkable Material Co, which produces macromolecule nuclear radiation modification materials.

Woer rose 8.46 percent to 18.58 yuan at close, while the major index gained only 0.85 percent.