BEIJING - China's five-year treasury bond futures opened mixed on Friday, with the contract for settlement in June 2019 opening 0.06 percent higher at 98.78 yuan ($14.73).

The contract for settlement in September 2019 opened 0.07 percent lower at 98.435 yuan. The contract for settlement in December 2019 had no trading at opening.

The contracts are agreements to buy or sell treasury bonds at a predetermined price on a 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.