ChiNext stocks opened lower Friday at 885.07, down 7.49 points, from the previous close.

The index, officially launched on June 1 on the Shenzhen Stock Exchange, has a base value of 1,000 points.

The ChiNext Index, together with the Shenzhen Component Index and the Shenzhen SME (small and medium-sized enterprises) Board Index makes up the three core indices reflecting the performance of China's stocks listed on the Shenzhen Stock Exchange.