(Yicai Global) April 28 -- China's mainland stock markets walked back this morning's advances while Shanghai's tech-heavy Star Market fell more than Shenzhen's ChiNext Price Index that may receive a new registration system.

The newest Star Market slid by 2.16 percent to 1,974.99 soon after opening higher. The ChiNext, which could become the next focus of market reforms, fell 1.23 percent to 1,992.81.

The main benchmarks of Shanghai and Shenzhen markets had started higher, led by brokerages and listed venture capital firms. The Shanghai Composite Index began 0.16 percent up at 2,819.99. The Shenzhen Component Index had climbed 0.24 percent to 10,477.76.

Editor: Emmi Laine