Hotter-than-expected inflation data pushes December rate hike odds to 85%, adding fresh pressure on mortgage rates and affordability
Mortgage rates are likely headed higher after October inflation data came in hotter than expected, pushing the probability of a Federal Reserve rate hike at its December 8–9 meeting to 85%, according to CME FedWatch tool.
The Bureau of Labor Statistics (BLS) reported Tuesday that the consumer price index (CPI) rose a seasonally adjusted 0.4% for the month, above the 0.3% consensus among economists surveyed by Dow Jones and FactSet.
Core inflation, which strips out food and energy, held at 0.3%, also above the 0.2% forecast.
No annual rate was published for October; the 2025 government shutdown left the BLS without comparable data from the prior year.
What the data means for the December Fed decision
Markets moved fast after the release. Traders moved to price an 85% probability of a 25-basis-point hike at December’s meeting, with some wagering on a larger 50-basis-point move.
The Fed raised its benchmark rate in September, its first increase since 2023, to a range of 3.75%–4%.
Two-year Treasury yields, sensitive to near-term rate expectations, rose as much as 0.17 percentage points on the day to 4.71%, per the BLS release.
Read more: Treasury yields rise as CPI data tests mortgage rate outlook
“This was the report the market could least afford to see,” said Karen Manna, fixed income investment strategist at Federated Hermes.
“A hotter inflation print raises fresh questions about whether the Fed has done enough to contain price pressures and reinforces the risk that interest rates need to move higher and stay there for longer.”
Jeff Schulze, head investment strategist at the Franklin Templeton Institute, was equally direct: “Today’s hot October core CPI print leaves a December rate hike all but signed, sealed and delivered after Governor Waller’s notably hawkish remarks.”
Mike Fratantoni of the MBA, Seema Shah of Principal Asset Management, Eric Orenstein of Fitch Ratings, and Barry Habib of MBS Highway say robust employment data is reinforcing expectations for tighter monetary policy heading into 2027. https://t.co/CSQ8hikcCX
— Mortgage Professional America Magazine (@MPAMagazineUS) November 6, 2026
Breaking down the components
Shelter costs, the single largest CPI component, rose 0.3% and accounted for more than 30% of the monthly headline gain, according to the BLS.
Energy prices increased 0.7%, easing from September’s 5.2% surge. Food costs climbed 0.5%, driven by a 1% rise in snacks and a 0.9% jump in beef prices.
Josh Hirt, senior economist at Vanguard, identified three structural forces: “Core inflation today reflects three outsized shocks: tariffs, energy prices and AI-related demand.”
For mortgage brokers, the December 8–9 meeting is now a concrete deadline. With the 30-year fixed rate still above 7% and Bank of America warning of three Fed hikes before year-end, clients who are undecided about locking in now face a narrowing window.
Read more: Fed’s Daly signals more rate hikes
Fed Chair Kevin Warsh, speaking on October 28, framed the central bank’s mandate plainly.
“Our job is to ensure that relative price changes in some sectors do not broaden across the economy, and that inflation expectations remain as they are anchored,” he said.
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