Shares in mainland China soared at the opening, as markets reopened after the Golden Week holidays. But they slid back as the stimulus plans provided by China's economic planning agency seemed to underwhelm investors.

China markets reopen following Golden Week holidays Key planning body NDRC plans 10 a.m. briefing in Beijing Recent stimulus efforts have boosted optimism on China Oil futures in Shanghai also gained at the open,

Sentiment in China's stock markets have been massively bolstered by Beijing's late-September 24 announcement of aggressive economic stimulus.