Market odds of a Federal Reserve rate increase at next week’s Federal Open Market Committee meeting jumped to roughly 85% on Friday following a hotter-than-expected core consumer inflation reading for August.
Economists reacted quickly. "With core CPI running hotter than consensus on a monthly basis, and accelerated from July's pace, we now think this would tip most FOMC members over in favour of a hike in the upcoming FOMC meeting next week," wrote Helen Lao of CIBC Economics in a flash note.
The Bureau of Labor Statistics reported that core CPI - which excludes food and energy - rose 0.3% in August, outpacing the 0.2% forecast. Headline CPI increased 0.4% for the month, matching expectations, as gasoline prices rebounded after two months of declines. On a year-on-year basis, headline inflation remained at 3.4%, while core CPI eased slightly to 2.4% from 2.5% in July.
The report landed five days before the Fed's September 15-16 policy meeting - a session that markets now broadly expect to deliver the first rate increase since July 2023.
Fixed-income markets responded alongside the inflation surprise. The 10-year Treasury note auction on September 9 cleared at 4.834%, up from 4.683% at the previous comparable auction. The 30-year bond auction on September 10 yielded 5.308%, versus 5.216% previously, reflecting heavier selling of long-dated government debt as markets priced in a higher probability of additional rate tightening.
Investors in rate-sensitive corners of the market are vulnerable to margin pressure should the Fed follow through with the quarter-point increase that is now widely priced in. Utilities and real estate investment trusts were specifically identified as facing direct margin stress if borrowing costs rise further.
Friday's consumer price data came on the heels of Thursday's producer price index, which showed U.S. wholesale prices rose 0.4% in August and 5.4% on a year-on-year basis. Those wholesale trends, paired with elevated crude prices, add to the inflationary backdrop confronting policy makers.
Brent crude's sustained move above $100 per barrel - linked in the report to renewed Iran-related hostilities - has kept gasoline prices elevated and complicated the Fed's effort to declare inflation contained. Rising energy costs feed through to both headline and some core measures over time, constraining the central bank's room for leniency.
The global policy picture has shifted in recent days as well. On September 10 the European Central Bank raised its deposit facility rate to 2.50% from 2.25% and lifted the main refinancing rate to 2.65% from 2.40%, citing intensifying energy-driven inflation pressures across major economies.
The Federal Reserve has held its policy rate in the 3.50%-3.75% range since December 2025, a pause many had expected to persist well into 2027. That assessment changed materially after Fed Chair Kevin Warsh offered a notably hawkish address at Jackson Hole in late August, which helped push two-year Treasury yields sharply higher.
All eyes will now focus on Wednesday, when the FOMC will announce its decision and publish updated economic projections. The coming statement and projections will be scrutinized for policy path guidance and how committee members interpret the recent data flow.
Given the combination of faster-than-expected core inflation, firm wholesale prices and renewed energy price pressure, markets have quickly repriced the likelihood of nearer-term tightening. Traders and investors will enter next week watching auction results, rate moves and the FOMC statement for confirmation of the new pricing landscape.