Treasury prices fell Monday as investors no longer rushed for the safety of U.S. debt.
Global markets rose on better economic news from Japan. And in the U.S., a series of merger and acquisition announcements encouraged investors.
The benchmark 10-year Treasury fell 43.75 cents for every $100 invested. That sent the yield up to 2.31 percent from 2.26 percent late Friday. Treasury yields rise when prices fall.
Last week, wild swings in stocks sent the 10-year yield to a record low 2.03 percent as investors looked for safe places for their money. On Monday, global markets rose after Japan said its economy shrank at a 1.3 percent annual rate in the second quarter. That's less than half the drop economists expected after the March 11 earthquake.
A flurry of acquisitions in the U.S. lifted stocks. Google led Monday's deals with its $12.5 billion purchases of Motorola Mobility Holdings. Time Warner Cable, Cargill and Transocean also announced purchases of more than $1 billion each.
In other trading, the 30-year Treasury fell 81.25 cents for every $100 invested, sending its yield up to 3.77 percent from 3.73 percent late Friday.
The three-month Treasury bill paid a 0.01 percent yield. Its discount was 0.02 percent.