(Yicai Global) Nov. 21 -- China's mainland stock markets were down at the opening bell this morning after sliding yesterday.

The Shanghai Composite Index opened 0.29 percent lower at 2,902.55, while the Shenzhen Component Index moved down 0.38 percent to 9,772.03. The ChiNext Price Index, which tracks Shenzhen-listed growth enterprises, started the day 0.36 percent lower at 1,713.44.