**WTMS Blog Today = What’s up in Mortgage Today (AM) – 09/11/2026**
Bond markets logged a paradoxical rally today as inflation data sparked a 90% probability of a Federal Reserve rate hike next week. The August core CPI came in at 0.3% month-over-month versus a 0.2% forecast, pushing the 10-year Treasury yield to near 5% before recovering slightly to 4.947%. UMBS securities strengthened across all coupons, with the 30-year 5.5 coupon climbing 30 basis points intraday to 97.75, signaling bond investors’ appetite for inflation-fighting policy.
Mortgage rates have crested above 7% for the first time since May 2025, hitting 7.07% on the 30-year fixed as rising oil prices and Treasury yields compressed lending margins. Lenders are responding by tightening credit availability on jumbo and cash-out refinance products, with the MBA’s Mortgage Credit Availability Index falling 1% in August to 107.3. For originators, the tightened credit box means fewer program options and higher qualification standards for borrowers sitting in the jumbo zone.
Rocket Mortgage and CrossCountry Mortgage jumped ahead of the FHFA’s official announcement by raising their conforming loan limits to $845,000, effective immediately and representing a $12,250 increase from 2026’s $832,750 ceiling. This proactive move keeps more high-balance borrowers in the conventional channel rather than forcing them into jumbo underwriting and pricing. The implied 1.47% increase for 2027 suggests a slower pace of home-price appreciation compared to prior years.
Home insurance premiums hit a record high at $209 monthly in Q2 2026, now consuming 9.6% of the average mortgage payment, according to ICE data tracking over 650,000 properties. Regional disparities remain stark, with New Orleans seeing insurance represent 24.3% of total monthly housing costs while San Jose holds at just 4.3%. The 8.7% annual increase represents an 80% surge since 2020, though the quarterly pace of increases appears to be moderating.
Prepayment speeds for UMBS securities have slowed sharply, with Fannie Mae 30-year speeds declining 12% month-over-month to 7.1 CPR in August—the slowest pace since April 2025. With only 3.4% of conventional borrowers currently refinance-incentivized at today’s higher rates, originators face muted purchase and refinance volume heading into fall. Servicer composition continues to matter, with Rocket/Quicken, Huntington, and Fifth Third showing faster speeds while Rushmore and Marlin remain slower.
Oil prices surged overnight and Treasury Secretary Bessent’s first Treasury buyback operation fell short of expectations, keeping downward pressure on bonds despite the Fed’s hawkish inflation stance. The 10-year yield remains elevated near 5%, and a breach above that psychological level could strain equities and heighten concerns over the sustainability of public finances. Traders now price two Fed rate hikes by January 2027, betting heavily that higher rates will finally cool inflation and stabilize the mortgage market.
**Locking vs Floating**
August inflation data has shifted the lock-versus-float equation decisively toward locking. With the Fed highly likely to hike rates next week and mortgage rates already above 7%, borrowers face a narrowing window to lock in protection. The bond market’s aggressive repricing reflects inflation pressures that the Fed must address, meaning further rate hikes remain probable.
Floating strategies carry substantial risk given the hawkish pivot.
**Today’s Events**
August Consumer Price Index (CPI) m/m Headline: 0.4% vs. 0.4% forecast
August CPI m/m Core: 0.3% vs.
0.2% forecast, 0.2% prior
August CPI y/y Headline: 3.4% vs. 3.4% forecast
August CPI y/y Core: 2.4% vs. 2.4% forecast, 2.5% prior
September Preliminary University of Michigan Consumer Sentiment (later today)
August Treasury Budget (later today)
**Bond Pricing**
**UMBS 30 yr**
| Coupon | Price | Intra-Day Change |
| 5.0 | 95.06 | 0.27 |
| 5.5 | 97.68 | 0.23 |
| 6.0 | 100.11 | 0.20 |
**GNMA 30 yr**
| Coupon | Price | Intra-Day Change |
| 5.0 | 95.44 | 0.08 |
| 5.5 | 98.15 | 0.06 |
| 6.0 | 100.56 | 0.10 |
**Treasuries**
| Term | Yield | Price | Intra-Day Yield Change |
| 2 yr | 4.588 | 99.124 | 0.009 |
| 3 yr | 4.674 | 99.172 | -0.009 |
| 5 yr | 4.742 | 98.382 | -0.015 |
| 7 yr | 4.832 | 98.047 | -0.024 |
| 10 yr | 4.933 | 97.594 | -0.033 |
| 30 yr | 5.331 | 96.939 | -0.035 |
