China and Hong Kong stocks opened lower on Wednesday, as investors are still assessing the news of a potential 10 trillion yuan (US$1.40 trillion) fiscal boost from Beijing, while remaining cautious ahead of US elections next week.

China's blue-chip CSI-300 Index opened down 0.5 percent, while the Shanghai Composite Index dipped 0.4 percent.

Hong Kong's benchmark Hang Seng Index was down 0.6 percent at 20,586. (Reuters)