October CPI Rises 0.4%, Core Prices Top Forecasts as Fed Weighs December Rate Decision

U.S. consumer prices rose a seasonally adjusted 0.4% in October, while core inflation, which strips out food and energy, climbed 0.3%, the Bureau of Labor Statistics reported. Both figures came in above Wall Street forecasts, according to CNBC, adding fresh complications for Federal Reserve officials heading into their December meeting.

Trading Economics data show the 0.4% headline print exceeded a 0.3% consensus forecast, while core CPI's 0.3% gain topped expectations of 0.2%. The reading followed a 0.6% headline increase and a 0.3% core increase in September, meaning monthly headline inflation slowed from the prior month even as core inflation held steady at the same pace recorded in August and September, per CNBC and Trading Economics.

What drove the monthly increase

Shelter costs rose 0.3% in October and, according to the BLS as cited by CNBC and Trading Economics, accounted for more than 30% of the overall headline increase, underscoring housing's continued outsized role in the inflation calculation.

Energy prices climbed 0.7%, a sharp deceleration from September's 5.2% increase, according to Trading Economics. The gain was driven by a 1% rise in gasoline prices and roughly a 0.9% increase in electricity costs, partly offset by a 0.8% decline in natural gas prices, CNBC reported.

Food costs accelerated 0.5%, pushed higher by a 1% jump in snack prices, a 0.9% increase in beef, and a 0.5% rise in meats, poultry, fish and eggs, per CNBC. Trading Economics similarly pointed to higher grocery costs across snacks, meat, fruit, vegetables and dairy.

Elsewhere, CNBC reported that transportation services jumped 0.8%, new vehicle prices rose 0.2% while used cars and trucks fell 1.2%, apparel edged up just 0.1%, medical care commodities rose 0.5%, and airline fares increased 0.4%.

No annual comparison this month

The BLS did not publish a year-over-year inflation rate for October, CNBC and Trading Economics both reported, because last year's government shutdown prevented the bureau from collecting sufficient comparable data in October 2025.

In the absence of an official annual figure, Bank of America, using an assumed baseline that interpolated data from the same period last year, estimated October's annual inflation at 3.8% for the headline figure and 2.7% for core, both 0.1 percentage point above September's levels and well above the Fed's 2% target, according to CNBC's preview coverage. This is an estimate from Bank of America rather than an official BLS calculation, and it should be read as one analyst's interpolation rather than a confirmed government statistic.

Market reaction and the December decision

Following the release, traders fully priced in a quarter-point rate increase at the Fed's upcoming Dec. 8-9 meeting and assigned a 13.6% probability to a half-point move, according to the CME Group's FedWatch tool as reported by CNBC. At its October meeting, Fed officials had voted 10-2 to hold the benchmark rate in a range of 3.75% to 4% while awaiting more data, CNBC reported.

Karen Manna, a fixed income investment strategist at Federated Hermes, told CNBC that the report was "the report the market could least afford to see," reflecting concern that the Fed has not yet done enough to contain inflationary pressure.

Ahead of the release, Bank of America economist Stephen Juneau wrote in a client note cited by CNBC that if the firm's forecast proved correct, it would "effectively lock in another 25bp hike, all else equal," adding that "absent an indisputably soft 0.1% [month-over-month] print, we doubt the inflation data will dissuade the Fed from hiking in December." The actual readings came in at 0.4% headline and 0.3% core, well above the 0.1% monthly threshold Juneau cited. Our reading of that stated condition is that the data leave room for the Fed to proceed with a December increase; that is an interpretation of how Juneau's framing lines up with the reported figures, not a new forecast from Juneau.

Broader context: growth, labor and shifting inflation drivers

Chicago Fed President Austan Goolsbee, in remarks cited by CNBC, said inflation pressures initially tied to tariffs and the Iran war are spreading into services sectors, and that the dynamic increasingly resembles demand overheating linked to AI data-center investment rather than the supply-side shocks originally blamed for price pressure. "It was supposed to have gone away by now, and we're now starting to see the inflation kicking up in areas that probably weren't from oil prices and tariffs, like a bunch of services," Goolsbee said, adding that the AI data-center build-out "is, to my eyes, starting to look more just like old-fashioned demand overheating."

The CPI report landed amid otherwise strong growth and labor data. CNBC cited 3.4% third-quarter GDP growth and nonfarm payroll gains of 165,000 in October, with unemployment edging down to 4.1%, even as inflation-adjusted wage growth has been negative. That combination, a resilient economy alongside firmer inflation, is part of what is complicating the Fed's calculus heading into December.

Bottom Line

October's CPI report delivered hotter-than-expected readings on both the headline and core measures, with shelter, energy and food all contributing to the monthly gain even as the annual comparison was unavailable due to last year's data gap. Market pricing now reflects a fully expected quarter-point December rate increase, though the size of any move and the Fed's broader path remain subject to additional data and the committee's own deliberations at its Dec. 8-9 meeting.