Treasuries advance as Yellen testifies

U.S. Treasuries increased on Tuesday trading session with the benchmark 10-year yields dropping for the first time in a three-day period as the new U.S. Federal Reserve Chairwoman Janet Yellen testifies to lawmakers. The benchmark 10-year notes yielded three basis points higher at a level of 2.70% as of 8:44 a.m. New York time.