Rates opened the week higher and stayed there: the 30-year closed at 6.71%, up 8 basis points from Friday, with the 10-year Treasury finishing at 4.59% and UMBS 5.0 off 19 ticks on the day.

With nothing on the calendar, bonds had no reason to fight the drift. The 10-year pushed up to 4.59% — back above the 4.56% line that last week's cooler CPI and PPI prints had briefly broken — and mortgage-backed securities gave ground steadily through the session. UMBS 5.0 closed at 97-19, down 19 ticks from Friday's finish, and rate sheets moved 8 basis points higher to 6.71%. The selling was orderly, not a dislocation, but it erased a good chunk of last week's post-inflation rally.

For borrowers, the takeaway is that last week's improvement wasn't a trend on its own — it needs fresh data to hold. A data-free Monday let positioning do the work, and positioning leaned toward giving back gains. That puts the pressure on the rest of this week's calendar to prove the break below 4.56% was real. Until then, the market is trading on vibes, and today's vibe was mildly risk-on, mildly rate-negative.

— David Burson, NetRate Mortgage