U.S. Treasuries increased on Monday with the benchmark 10-year yields snapping a three day series of gains before a speech held by two Federal Reserve voting members as investors expect the central bank tapper off its stimulus program. The U.S. 10-year government yields slipped one basis point to 2.61% by 7:19 a.m. London time after the prices gained 12 basis points in three days until November 1.