(Yicai Global) Aug. 21 --  China's mainland stocks traded in a narrow band through the day as  investors awaited more earnings reports and macroeconomic data to  determine whether to buy or sell. 

The Shanghai Composite  Index was 0.01 percent higher at 2,880.33 at the close. The Shenzhen  Component Index dropped 0.1 percent to 9,322.75. The ChiNext Price  Index, which tracks growth enterprises listed in Shenzhen, fell 0.1  percent to 1,609.83.

Most of the 28 shares  traded on Shanghai's newly launched Star Market closed lower, logging  declines in a range from 3.9 percent to 10.3 percent. All of the stocks  on the Nasdaq-style board, which started trading last month, have more  than doubled their initial public offering prices.

Editor: Emmi Laine