US CPI inflation release: September 2026 data
Why it matters
US CPI is the single print that most moves Fed expectations — and with them the dollar, global yields and the ECB’s imported-inflation and rate-differential calculus.
What to watch
- Headline and core m/m versus consensus; the 12-month rate versus the Fed’s 2% goal.
- Shelter, energy and tariff-sensitive goods components.
- Fed-pricing and EUR/USD reaction, and read-across to ECB rate-path expectations.
Result captured
US CPI, September: +0.6% m/m seasonally adjusted; 3.7% over the last 12 months. Source: BLS news release.
The headline figure is 0.6%, up 0.2 points from 0.4% in the previous release.
Briefing
September's acceleration in headline inflation to 3.7% year-over-year—driven by a 9.1% monthly surge in gasoline—forces the Fed to defend a higher-for-longer rate path, widening the dollar and the US-eurozone yield gap at a moment when the ECB is already managing imported inflation and divergent growth.
Sources
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