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EUROZONE4 min read

Eurozone inflation jumps to 3.8%, a three-year high

Inflation hit 3.8% in September, beating the 3.6% forecast and the ECB's own projected peak, as energy prices surged 18.8% on the year.

MacroRatesFXJuniorTrader desk · 5 sources

  • Eurozone inflation jumped to 3.8% in September, a three-year high and above the 3.6% expected, as energy prices rose 18.8% on the year.

  • That is already above the ECB’s projected peak of about 3.6%, a quarter early, so the case for a third hike is building, and short-dated euro trade it first.

  • Watch services inflation, at 3.2%, and core, at 2.5%: if they keep climbing, the energy shock is spreading. Two-year German yields and EUR/USD, near 1.125, reprice first.

The trader’s angle

With inflation already above the ECB’s projected peak, the case for a third hike is building, and short-dated euro yields trade it first.

The chart

Germany’s 10-year Bund yield over the past year.

DE 10Y

Eurozone inflation, Sept flash

3.8%

upvs 3.6% expected

The highest in three years. Prices rose 0.6% in September alone.

Energy prices, year on year

18.8%

upfrom 14.3% in August

Energy explained close to half of the headline inflation rate.

Core inflation

2.5%

Excludes energy, food, alcohol and tobacco. Services inflation, inside core, ticked up to 3.2% from 3.0%.

ECB deposit rate

2.50%

up+25bp on 10 Sept

The ECB's second hike of 2026. It won't pre-commit, but markets read the meeting as a sign of more to come.

measures how fast prices are rising across everything households buy, from bread to petrol. strips out the most volatile items (in the eurozone: energy, food, alcohol and tobacco) to show the trend underneath.

In an energy shock the two can split sharply apart. Central banks target the headline, but they watch core, and especially services, for signs that the shock is spreading into wages and everyday prices. That spread, known as , is what turns a temporary spike into a lasting problem, and what persuades a central bank to keep raising rates.

What happened

Eurozone inflation jumped to 3.8% in September, Eurostat’s showed on Friday morning. That is the highest in three years and above the 3.6% economists had expected. Prices rose 0.6% in the month alone.

Energy did the heavy lifting. Energy prices were 18.8% higher than a year earlier, up from 14.3% in August, and explained close to half of the inflation rate. , which strips out energy, food, alcohol and tobacco, was 2.5%.

But energy wasn’t the whole story. Services inflation ticked up to 3.2% from 3.0%, and services show whether the shock is feeding into wages and everyday prices.

Why it matters for traders

The print lands on a central bank that is already tightening. The ECB raised its to 2.50% on 10 September, and it had expected inflation to peak at about 3.6% in the fourth quarter. September’s 3.8% is already above that projected peak, a quarter early.

Markets read that meeting as : the ECB raised its inflation forecasts and acknowledged the economy’s surprising strength, even as it refused to pre-commit to further moves. A central bank that won’t pre-commit is letting the data decide, and this data beats its own forecasts.

The first place that shows up is the front end of the . Two-year German yields, the , track expected ECB rates most closely. Higher expected rates also tend to support the euro by raising the return on euro assets; it traded around 1.125 against the dollar on Friday.

The case for holding off rests on core. At 2.5%, it sits 1.3 points below the headline, which says this is still mostly an energy shock. Services ticking up is what makes that argument harder to win.

How it ripples through markets

How an energy shock reaches the ECB

  1. 1

    Energy prices surge

    upEnergy prices

    Energy costs are 18.8% higher than a year ago, up from 14.3% in August.

  2. 2

    Headline inflation jumps

    upHeadline inflation

    Energy explains close to half of September's 3.8%, a three-year high.

  3. 3

    Costs creep into services

    upServices inflation

    Services inflation ticks up to 3.2% from 3.0%, a possible sign that firms are passing on dearer energy and pay is following: the kind of second-round effect the ECB fears.

  4. 4

    The case for another hike builds

    Higher rates are how the ECB pulls inflation back towards its 2% target, and inflation is already above the peak of about 3.6% it had projected. The ECB has refused to pre-commit, so the data decides.

  5. 5

    The front end reprices

    Two-year German yields track expected ECB rates, so higher odds of a hike push them up first.

The backstory

Energy prices have surged since the US-Israeli war with Iran began on 28 February, and the ECB has chosen to lean against the spillover rather than wait. It raised rates in June and again on 10 September, by 25 from 2.25%: its second hike since the war began. The September decision was unanimous, and President Christine Lagarde described it as an easy decision.

Hiking into an energy is still a judgement call. Higher rates can’t produce more oil or gas, and they squeeze growth. What they can do is stop a one-off price jump from becoming persistent inflation through , as workers push for higher pay and firms pass on costs.

The ECB’s September projections see inflation averaging 3.0% this year and 2.5% in 2027. By 2028 it is 2.1%, close to the 2% target: the ECB expects the spike to fade.

What to watch

Services and core in the coming months. If services keep climbing from 3.2% and core follows, the energy shock is spreading, which is exactly what the ECB is hiking to prevent.

Energy prices will decide whether 3.8% is the peak, since energy explains close to half of the headline rate. And because the ECB won’t pre-commit, each data point shifts the odds of its next move. Two-year German yields and EUR/USD, near 1.125, are where you’ll see those odds repriced first.

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Sources

Written by the JuniorTrader desk with AI assistance, from the reports above. Intraday levels are snapshots and may have moved since. Not investment advice.

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