(Yicai Global) Oct. 13 -- China's mainland stock markets took a break from their two-day surges by retreating in early trading today with securities brokerages falling the most.

The Shanghai Composite Index slid 0.16 percent to 3,353.12 as the opening bell rang. The Shenzhen Component Index was at 13,678.62, down 0.21 percent. The ChiNext Price Index, which tracks growth enterprises in Shenzhen, fell 0.28 percent to 2,769.66.

Brokerages started 1 percent lower after gaining 3 percent yesterday. Hangzhou-based Zheshang Securities [SHA:601878] dropped 4.12 percent to CNY17.22 (USD2.60), becoming the biggest loser.

Editor: Emmi Laine