(Yicai Global) Sept. 6 -- China's three major stock indexes started the day by extending the upward trend of this week, and internet security and Big Data sectors were the biggest winners, spearheaded by one new entrant on the Star Market.

The Shanghai Composite Index opened 0.36 percent higher at 2,996.62. The Shenzhen Component Index climbed 0.47 percent to 9,829.97. The ChiNext Price Index, which tracks growth enterprises listed in Shenzhen, started 0.63 percent up at 1,699.66.

Internet security firms jumped over 14 percent and Big Data ones advanced 7.8 percent by 9.50 a.m., after Beijing's ABT Networks [SHA:688168] got listed on Shanghai's new Star Market, and more than tripled its IPO share price at the opening. 

Editor: Emmi Laine