The yield on the benchmark 30-year bond dropped to 7.56 percent, down 4 basis points.
The yield on the benchmark 30-year bond rose to 5.87 percent from 5.85.
The yield on the benchmark 30-year bond slipped to 6.92 percent.
The price of the benchmark 30-year bond fell 10/32, to 96.
At one point in the day the benchmark 10-year bond had a yield of just 0.685 percent.
At the beginning of the year, the benchmark 30-year bond yielded only 5.85 percent.
The yield on the benchmark 30-year bond fell to 5.96 percent from 5.97.
The price of the benchmark 30-year bond rose 9/32, to 106.
The price of the benchmark 30-year bond rose 5/32, to 93.
The price of the Treasury's benchmark 30-year bonds plunged almost a point.
