China's five-year treasury bond futures opened mixed on Tuesday.

The contract for settlement in June 2017 had no trading at the opening. The contract for settlement in September 2017 opened 0.026 percent lower at 97.785 yuan (14.4 U.S. dollars). The contract for settlement in December 2017 opened at 97.625 yuan, 0.061 percent lower from the previous close.

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.