Bonds slump as US 10-year Treasury yields hit highest since 2007 ↧ ↧ Bonds slump as US 10-year Treasury yields hit highest since 2007 Bonds slumped on Tuesday, sending benchmark 10-year ‌U.S. Treasury yields to their highest since 2007, as higher oil prices unsettled investors ahead of key central bank meetings in the U.S. and Japan.