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US Consumer Price Index rose 0.4% in August, with core inflation up 0.3% monthly, exceeding forecasts. This puts pressure on the Fed for a rate hike.
The U.S. Consumer Price Index (CPI) rose 0.4% month-over-month in August, up from 0.1% in July, with core inflation (excluding food and energy) climbing 0.3% monthly, exceeding economists' expectations of 0.2% [1, 2, 3]. This "stickier" core inflation reading has increased market expectations for an interest rate hike by the Federal Reserve at its upcoming meeting next week [1, 2].
| At a glance | |
|---|---|
| August CPI (MoM) | +0.4% [1] |
| August Core CPI (MoM) | +0.3% (vs. 0.2% expected) [2, 3] |
| Annual CPI | +3.4% (vs. 3.4% in July) [1, 2] |
| Fed Rate Hike Odds | Nearly 90% for 0.25% increase [3] |
The overall CPI's 0.4% monthly increase in August was in line with Dow Jones consensus estimates, bringing the annual inflation rate to 3.4%, matching July's figure [2, 3]. However, the core CPI's 0.3% monthly gain was 0.1 percentage point higher than forecast, signaling persistent underlying price pressures [2, 3]. On a year-over-year basis, the core CPI rose 2.4%, down from 2.5% in July, but still above the Federal Reserve's 2% target [1, 2].
Energy prices were a significant driver of the headline increase, with the energy index rising 2.1% month-over-month in August [1]. Gasoline prices jumped 3.9% from July, contributing to over one-third of the monthly all-items index increase [1, 2]. Annually, the energy index was up 16.3%, largely due to a 27.4% increase in gasoline and a 52% surge in fuel oil [1, 3].
Beyond energy, several other categories contributed to the monthly jump in core inflation. Communication services rose 2.3%, airline fares increased 2.7%, education was up 0.8%, and used cars and trucks saw a 0.4% rise [1, 2]. Shelter costs also climbed 0.3% month-over-month, with owners' equivalent rent of residence up 0.2% [1, 2]. Conversely, medical care services decreased 0.2%, and motor vehicle insurance fell 0.8% in August [1, 2].
The hotter-than-expected core inflation reading has intensified pressure on the Federal Reserve to raise interest rates [2]. Traders responded to the CPI report by increasing bets on a quarter-point rate hike at the Federal Open Market Committee (FOMC) meeting next week, with odds jumping to nearly 90% from about 70% beforehand, according to CME Group’s FedWatch tool [2, 3].
Economists noted that the firmer core inflation reading, combined with a solid labor market, provides policymakers with room to lean harder against inflation [1]. Angelo Kourkafas, senior global strategist at Edward Jones, stated that the "upside surprise to core inflation means that the Fed is running out of reasons to wait" [2]. Higher rates would increase borrowing costs across the economy, potentially keeping mortgage rates elevated for homebuyers [1, 2].
| August CPI Data | Monthly Change | Annual Change |
|---|---|---|
| All Items | +0.4% [1] | +3.4% [1] |
| Core (less food & energy) | +0.3% [1] | +2.4% [1] |
| Food | +0.1% [1] | +2.7% [1] |
| Energy | +2.1% [1] | +16.3% [1] |
| Gasoline | +3.9% [1] | +27.4% [1] |
| Shelter | +0.3% [1] | +3.0% [1] |
The August CPI report suggests that underlying price pressures remain stubborn, particularly in core services, reinforcing the likelihood of further monetary policy tightening by the Federal Reserve to bring inflation under control [1, 2].
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AI-assisted synthesis by the TrendWatcher Editorial Desk · sourced from 3 outlets · Sep 16, 2026 · How we report
The U.S. Consumer Price Index showed a 0.4% monthly increase in August. Over the 12 months ending in August, the all items index rose 3.4%.
Service-level inflation is identified as a primary driver of U.S. inflation. Specific examples include rising costs for airline fares, shelter, and lodging away from home.
UK inflation rose to 3.1% in August, marking a five-month high. This increase has raised concerns and is being discussed in the context of government economic policy and potential interest rate decisions.
The rise in UK inflation in August was attributed partly to turmoil in the Middle East and higher energy costs. The government is considering difficult decisions to manage the economy.
'Stickier inflation' suggests that recent price increases are not temporary anomalies but rather indicative of a more persistent trend. This is based on observations of broad cost increases across various services, such as pet care and wireless plans, indicating that prices may remain elevated.