Bonds closed at their weakest level since June 10, with UMBS 5.0 finishing down 26 basis points at 97.87 — rates are back toward recent highs after last Thursday's brief reprieve.

Monday ended where it started: under pressure, with no catalyst to turn it around. UMBS 5.0 closed at 97.87, down 26 basis points from Friday's close. The 10-year Treasury settled at 4.508%, up 5.3 basis points on the day. MBS Live's rate index noted that mortgage rates gave back all of last Thursday's improvement and pushed above last Wednesday's levels — the highest quoted rates since June 10.

The day's decoupling was notable. Oil was down, European bonds recovered, and both factors would typically pull U.S. bonds higher. They didn't. MBS Live's Matthew Graham flagged the disconnect as unusual: the most plausible explanations are continued digestion of last week's Warsh-era Fed reset, buyer hesitation ahead of a heavy Treasury auction cycle, and a growing buzz around military re-provisioning that implies persistently higher government borrowing. None of these are emergency-grade. The broader range that has held since early spring is still intact — but the direction is firmly bearish heading into Tuesday, with no major economic data on the calendar until Wednesday's bank stress test results (Fed, 4:00 PM ET).

For borrowers: the 30-year rate that was 6.58% at this morning's open is back to 6.66% by end of day. That's where things stand.

— David Burson, NetRate Mortgage