(Yicai Global) Oct. 20 -- Most of the Chinese mainland stock markets' major indexes ended the morning session higher as investor sentiments improved after a mixed opening.

The blue chip-heavy Shanghai Composite Index was down 0.13 percent at 3,308.31 as the lunch bell rang. The Nasdaq-like Star Market Board 50 Index climbed 0.21 percent to 1,415.08.

The Shenzhen Component Index stood at 13,479.35, up 0.43 percent. The ChiNext Price Index, which tracks growth enterprises in Shenzhen, fared the best. It rose 0.93 percent to 2,714.74.

Editor: Emmi Laine