The upcoming US Consumer Price Index report is anticipated to reveal an acceleration in inflation for September, driven largely by climbing energy costs. Financial markets and policymakers will use the data to gauge shifts in consumer prices and anticipate the Federal Reserve's next move regarding monetary policy.
Economists surveyed by Bloomberg project that the annual headline inflation rate will tick up to 3.6% in September, compared to 3.4% in August. On a monthly basis, consumer prices are forecasted to advance by 0.6%, outpacing the 0.4% increase recorded the previous month.
Gasoline prices are identified as the primary catalyst behind the monthly uptick. According to the American Automobile Association, the average cost of regular gasoline nationwide climbed to a record $4.33 per gallon during the month, surpassing the prior monthly high set in 2023 by nearly 50 cents. The higher fuel costs translate directly into elevated expenses for travel, manufacturing, and goods delivery.
Meanwhile, the core inflation rate, which strips out volatile food and energy categories, is projected to edge upward to an annual rate of 2.5% in September from 2.4% in August. Month-over-month core consumer prices are predicted to rise by 0.2%, representing a slight deceleration from the 0.3% increase seen in August. Central bank officials rely on core figures to evaluate persistent underlying price pressures within the economy.
Jake Krimmel, a senior economist at Realtor.com, noted that while the September report is expected to follow predictable patterns, the absence of major surprises does not signal a complete resolution to inflationary challenges, as cost pressures remain elevated. Additional risk factors include potential upward pressures from airfares, hotels, auto parts, and diesel fuel, which could complicate efforts by the central bank to restrain price growth.
If core inflation aligns with projections around 0.2%, the Federal Reserve may find justification to keep interest rates steady at its upcoming October 28 meeting. Recent employment data showing the addition of only 29,000 jobs alongside an uptick in the unemployment rate further supports the case for a pause. Currently, market traders price in a 76% probability that the central bank will maintain its benchmark rate.
Conversely, analysts warn that a stronger-than-expected core reading could revive discussions of further monetary tightening. Bank of America economist Stephen Juneau suggested that a monthly core increase of 0.3% would likely trigger renewed speculation about a potential interest rate hike in October, depending on the comprehensive economic outlook.