China stock index futures open mixed Wednesday

China's stock index futures opened mixed on Wednesday, with the contract for settlement in June, the most actively traded, up 1.6 points to open at 2,156.6.

The contract for settlement in July dropped 2.4 points to 2,144.8. The September contract opened 1.8 points lower at 2,153.6, and the December contract gained 1.2 points to open at 2,171.8.

The stock-index contracts, agreements to trade the Hushen 300 Index at a present value on an agreed date, are designed to allow investors to bet on and profit from either gains or declines in the market.

The index futures were launched at the China Financial Futures Exchange (CFFEX) and started trading from April 16, 2010.