China's five-year treasury bond futures opened mixed on Tuesday, with the contract for settlement in June 2016 opened 0.030 percent lower at 101.025 yuan (about 15.5 U.S. dollars).

The contract for settlement in September 2016 opened 0.005 percent higher at 100.250 yuan. The contract for settlement in December 2016 had no trading at opening.

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.