China treasury bond futures close mixed Friday

China's treasury bond futures closed mixed on Friday, with the contract for settlement in September edging down 0.07 percent to 92.900 yuan (15.08 U.S. dollars).

The contract for settlement in December edged up 0.01 percent to close at 93.38 yuan. The contract for settlement in March 2015 dropped 0.05 percent to 93.770 yuan.

The contracts are agreements to buy or sell treasury bonds at a predetermined price and set date. They allow investors to bet on and profit from the movements in the value of the bonds.

The treasury bond futures were launched at the Shanghai-based China Financial Futures Exchange and started trading on Sept. 6, 2013.