U.S. government debt prices traded higher on Friday after the Bank of Japan adopted a negative interest rate policy.
Yields held near earlier levels after fourth-quarter GDP growth came in at a 0.7 percent annual rate.
The 2-year yield fell below 0.8 percent to trade near 0.7816 percent. The 10-year yield was around 1.9382 percent.
The Bank of Japan was not expected to take significant action on monetary policy at its meeting this week.