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Inflation Report Breakdown: Latest CPI and PCE Numbers Explained

Inflation Report Breakdown: Latest CPI and PCE Numbers Explained

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Inflation Report Breakdown: Latest CPI and PCE Numbers Explained

October 28, 2026 | ATN Trade & Finance

Two inflation gauges, two slightly different stories — and both matter for anyone making cost assumptions heading into 2027. The Bureau of Labor Statistics released September 2026 CPI data on October 14; the Bureau of Economic Analysis released August 2026 PCE data on September 30. The September PCE report, the Federal Reserve's preferred inflation gauge, releases tomorrow morning, October 29, at 8:30 a.m. ET. Here is what the available numbers show and what they mean for borrowing costs, supply chains, and operating budgets.

September CPI: Energy Reopened the Wound

Consumer prices rose 3.7% year over year in September, up from 3.4% in August and above the 3.6% consensus estimate — the first acceleration in four months. Month over month, the all-items index climbed 0.6%, more than half of which came from a single category: gasoline.

Gasoline prices surged 9.1% in September alone and are now 34.2% higher than a year ago. The broader energy index rose 5.2% for the month and 20.4% annually. Crude oil prices had crossed $100 per barrel in early October — WTI hit $100.53 on October 6, Brent trading above $110 — reinforcing the energy pressure heading into Q4. Fuel oil, which tracks diesel and heating oil, rose 15.3% in September and is up 74.2% year over year, a figure directly relevant to freight costs.

Goldman Sachs Asset Management's Tim Urbanowicz flagged that crude above $100 adds pressure to already-sticky core prices and may limit the Federal Reserve's flexibility. Vanguard senior economist Adam Schickling noted that inflation has proven "more persistent than many expected, especially in services," attributing it to resilient consumer demand that has not faded as quickly as models predicted.

Core Inflation: Shelter Is Grinding Lower, Services Are Not

Stripping out food and energy, core CPI rose 0.3% in September — the same monthly pace as August — and 2.6% year over year, up from 2.4% in August. That acceleration came despite shelter finally showing signs of slowing, which has been the primary storyline in core CPI for the past two years.

Shelter rose 0.4% for the month and 3.2% annually. Within that, owners' equivalent rent — the largest single component of the entire CPI — rose just 0.3%, and rent of primary residence rose 0.2%, both notably slower than rates from a year ago. Lodging away from home (hotels) jumped 2.0% for the month but has been volatile. The trajectory on shelter is downward, reflecting new-lease rent data that has been showing near-zero growth since early 2025.

The offsetting pressure came from services and goods. Transportation services rose 0.6% monthly and 2.7% annually, with airline fares up 1.2% for the month and 22.4% over the past year — a significant input cost for any business shipping time-sensitive cargo. Core goods, which fell for most of 2023 and 2024 as supply chains normalized, returned to positive territory: up 0.3% monthly and 0.7% annually, with apparel (+0.3% monthly, +3.4% annually) and used cars (+0.7% monthly) among the contributors. Medical care services rose 0.3% monthly; prescription drugs fell 1.2%. Food was flat for the month, up 2.5% annually, with eggs — a notable outlier due to avian flu disruptions — falling 1.3% monthly and now down 20.6% year over year as supply recovers. Coffee and airline-served beverages pushed restaurant costs up; grocery staples were largely stable.

August PCE: The Fed's Gauge Came in Lower — and Then Got Revised Lower Again

The PCE price index, the Federal Reserve's preferred inflation measure, told a softer story for August. Headline PCE rose 3.4% year over year, unchanged from July's revised figure. Core PCE — excluding food and energy — rose 3.0% annually, with a monthly increase of just 0.2%, both below the 3.3% consensus estimate and down from July's revised 3.0% (revised down from an original 3.3%).

That revision matters. The Bureau of Economic Analysis changed its methodology for calculating computer software, legal services, and investment advisory prices, retroactively reducing core inflation by approximately 0.3 percentage points back to 2021. Capital Economics estimated the revision left the three-month annualized core PCE rate near 2.0% — a figure that would look very different from the Fed's September projections, which put 2026 core PCE at 3.4% fourth-quarter to fourth-quarter. The Fed's projection predated the revision.

New York Fed President John Williams, responding to the August PCE data in late September, said there was "no need for urgency" on a rate hike, suggesting December rather than October as the more likely timing for additional tightening. Fed Governor Michael Barr was less sanguine, saying he did not yet see "a clear trend toward a timely return to 2%," citing elevated energy prices and AI-driven investment demand as complicating factors.

September PCE: Releasing Tomorrow, Cleveland Fed Is Watching

The September PCE report lands tomorrow, October 29. The Cleveland Fed's nowcasting model, updated October 28, puts September's monthly headline PCE change at 0.47% and core at 0.28%. If the 0.28% core monthly reading materializes, it would imply a year-over-year core rate near 3.1% — slightly higher than August but still significantly below the Fed's own forecast.

StockTitan's analysis of the arithmetic is instructive: reaching the Fed's 3.4% core PCE forecast for year-end would require monthly core increases averaging 0.33% from September through December. The summer pace of roughly 0.17% per month, if maintained, would bring core PCE to around 2.9% by December. Either way, the September PCE number will be interpreted in the context of the Fed's October hold and its December 8-9 meeting, where CME FedWatch currently puts the probability of a 25-basis-point hike at 81-85%.

What this means: The two gauges are telling a consistent story with different textures. Headline inflation accelerated in September primarily because of energy — gasoline and fuel oil — rather than broad-based demand pressure. Core inflation remains sticky but is not reaccelerating on its own; the shelter disinflation that economists have been waiting for is materializing, just not fast enough to offset energy's monthly contribution. The practical implication for supply chain and trade finance professionals is threefold: energy costs remain the most volatile input in freight, warehousing, and logistics budgets, and the $100+ crude environment that drove September's CPI print shows no sign of resolving before year-end; goods disinflation, which provided a tailwind for importers throughout 2023-2024, is fading as price declines in used vehicles, electronics, and apparel normalize; and the interest-rate environment — likely to include a December hike — keeps borrowing costs elevated for inventory financing, capital expenditure, and trade credit. Building Q1 2027 cost models around energy and borrowing assumptions meaningfully different from today's levels requires a specific view on oil supply and Fed policy that the current data does not support.

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