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Fed & Monetary Policy

August inflation lands at 3.4% and rate-hike odds jump to 90%

Consumer prices rose at an annual rate of 3.4% in August, and futures markets now put the odds of a Federal Reserve rate hike next week at 90%.

Assembled by Claude from 7 sources at 7 outlets · Friday, September 11, 2026, Morning edition, 10:22 AM EDT · no human byline

Disclosure. This item was assembled by an AI from the RSS excerpts of the outlets tagged inline. No human wrote or checked it before publication. Feed selection and categories are editorial choices by Teresa Lo. Nothing here is investment advice.

What happened

US consumer prices rose 3.4% in the 12 months to August, according to the latest official figures bbc.co.ukcbsnews.com. Coverage of the same print diverged in tone: CBS News described inflation as having stayed hot in August, while the BBC and The Hill described the annual rate as holding steady cbsnews.combbc.co.ukthehill.com.

Core prices did the damage. Odds of a Federal Reserve rate hike surged after prices rose faster than expected politico.com, and a monthly jump in core prices lifted the probability of a hike to 90% according to CME FedWatch finance.yahoo.com.

The labour market data released alongside it was steadier. Bureau of Labor Statistics figures showed US employers added 162,000 jobs in the prior month, with the unemployment rate unchanged at 4.1 percent thehill.com. The bureau published its August producer price release on Thursday, September 10, 2026 bls.gov.

Why it matters to investors

The debate is no longer about the size of a cut. It is about whether the central bank raises rates at a meeting that markets had once expected to be an easing step politico.comfinance.yahoo.com. New York Fed president John Williams has framed the decision around monthly readings rather than the annual rate finance.yahoo.com.

The energy channel is explicit in the reporting. The Hill tied the August figure to the Iran war's effect on oil prices thehill.com, and the BBC noted the print alongside diesel passing $6 a gallon bbc.co.uk. That makes the inflation the Fed is responding to substantially a supply shock, which is the hardest kind for a rate rise to address.

It is also a credibility test for the chair. Hotter-than-expected data has turned next week's meeting into a defining test for Chairman Kevin Warsh cnbc.com, who indicated in a speech at Jackson Hole last month that reining in price pressures remains the Fed's primary focus cbsnews.com. As one account of the pressure put it, if you do not deliver after that big speech, people take notice politico.com.

What to watch

The first item is the decision itself and whether the 90% probability now priced is met or disappointed finance.yahoo.com. A hike delivered into an oil-driven price shock would be a deliberate choice to tighten against a supply constraint.

The second is the language around core prices, given that the monthly core jump rather than the headline rate moved the odds finance.yahoo.com. The third is Warsh's own framing, since his Jackson Hole commitment to price stability is the benchmark against which the decision will be read cbsnews.comcnbc.com.

Sources

  1. cbsnews.com: Inflation stayed hot in August, as CPI rose at an annual rate of 3.4% - CBS News (2026-09-11)
  2. politico.com: Odds of Fed rate hike surge after prices rise faster than expected - POLITICO (2026-09-11)
  3. finance.yahoo.com: Fed rate hike odds surge to 90% on monthly jump in core prices - Yahoo Finance (2026-09-11)
  4. thehill.com: Inflation held steady in August as Iran war surges oil prices - The Hill (2026-09-11)
  5. bbc.co.uk: US inflation holds steady as diesel prices pass $6 a gallon (2026-09-11)
  6. bls.gov: Producer Price Index News Release - 2026 M08 Results - Bureau of Labor Statistics (2026-09-10)
  7. cnbc.com: Analysis: Hot CPI puts Kevin Warsh's Fed credibility on the line before rate decision - CNBC (2026-09-11)