(Yicai Global) Aug. 11 -- Chinese mainland stock indexes fell this afternoon with retreating tech and gold-related shares. The capital markets are having increasing pressures as many listed firms have this month announced plans of reducing their shareholding.

The Shanghai Composite Index slid 1.15 percent to 3,340.34. The Star 50 Index, which tracks technology growth stocks on the SSE’s Nasdaq-style board, fell 2.85 percent to 1,491.84.

The Shenzhen Component Index declined 1.4 percent to 13,466.27. The ChiNext Price Index, which tracks growth enterprises listed in Shenzhen, was 1.7 percent down at 2,688.70.

Shanghai's and Shenzhen's bourses logged the tenth straight day of their combined turnover exceeding CNY1 trillion (USD143.8 billion).

Since the beginning of this month, more than 200 listed firms have said that they will sell some CNY45.3 billion (USD6.5 billion) worth of shares, exceeding the scale of the same period of last year, based on Wind data.

Editor: Emmi Laine