The U.S. Treasury yield curve derived using off-the-run treasuries. Off-the-run treasuries refer to U.S. government bonds of a given maturity that are not the most recently issued. While they are not as recent as on-the-run treasuries, off-the-run treasuries can be used to construct a yield curve if there is a problem or distortion with the yield curve as represented by on-the-run treasuries. 

|||While the on-the-run treasury yield curve is the primary benchmark used for pricing fixed-income securities, fixed-income analytics are sometimes run by investors and traders based on the off-the-run treasury yield curve because they believe the on-the-run treasury yield curve has price distortions caused by the current market demand for the on-the-run bonds.