Eurozone economy unexpectedly shrinks in the first quarter as Iran war clouds loom over outlook

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The eurozone economy experienced contraction at the start of 2026, with revised data turning what was a slight positive growth into a negative value, leaving the European Central Bank facing the dual dilemma of curbing inflation and supporting growth amidst intensifying shocks from the Iran war.

Eurostat, the European Union's statistics agency, announced on Friday that the eurozone's GDP fell 0.2% quarter-on-quarter in the first quarter, reversing the previously reported 0.1% growth and marking the first quarterly contraction since 2022. The main reason for the revision was a significant downgrade in Ireland’s GDP data—from a previously estimated contraction of 2% to a sharp decline of 12.1%.

This data exacerbates the complexity of ECB policy. Officials have broadly indicated that they will announce the first interest rate hike since 2023 at next week’s meeting, citing the Iran conflict’s push on eurozone inflation to 3.2%, significantly above the 2% target. However, some officials worry that tightening monetary policy while the economy is clearly damaged could stifle the already fragile recovery momentum.

The shadow of the Iran war continues to hang over the outlook. The OECD predicted this week that the eurozone’s full-year growth rate will be only 0.8%, a sharp drop from 1.4% in 2025, and warned that "recent indicators show further deterioration in economic sentiment."

Ireland Data Sharply Downgraded, Obscures Real Economic Picture

The core of this data revision is Ireland. Ireland hosts a large number of American multinational enterprises, resulting in highly volatile GDP figures that significantly distort overall eurozone data. Eurostat’s latest figures show Ireland’s GDP plunged 12.1% in the first quarter, far exceeding the previously estimated 2% decline, dragging the eurozone figure into contraction.

However, this figure does not truly reflect Ireland's domestic economic situation. The multinational enterprise sector shrank by 27% during the quarter, but the capital inflows and outflows have minimal actual impact on the local economy. The Modified Domestic Demand indicator, which more accurately measures Irish domestic activity, grew 0.6% during the same period, showing a positive trend driven by consumer spending. The Irish government stated Thursday that it expects GDP to resume growth for the remainder of the year.

Excluding Ireland, eurozone first quarter growth would be about 0.2% to 0.3%. Bantleon's chief economist Daniel Hartmann said, "This is robust growth, consistent with the ECB’s frequently emphasized concept of 'resilience'." However, Oxford Economics senior economist Rory Fennessy noted in a client report that this figure is partly supported by companies stockpiling inventories in anticipation of supply chain disruptions, introducing some upward bias.

French and Italian data have also been revised. France’s statistics agency revised first quarter GDP downward to a 0.1% contraction, while Italy’s data improved compared to previous releases.

Iran War Hits Economic Momentum, Energy Shock Continues to Unfold

The core variable cooling the eurozone economy is the Iran war. Since the first round of US-Israeli airstrikes on Iran in late February this year, energy prices have soared, with Brent crude rising more than 30% cumulatively and European natural gas prices up more than 50%. Surging energy costs have eroded consumer purchasing power; Eurostat reported Thursday that April retail sales have declined noticeably.

Business activity is also contracting. This week’s Purchasing Managers’ Index (PMI) showed that eurozone private sector activity fell in May by the largest margin in 18 months, with both goods and service demand declining, while input cost increases hit the highest level in three and a half years. Daniel Hartmann warned, "If the Middle East conflict is not resolved in the coming weeks, eurozone growth could slow sharply."

Meanwhile, inflationary pressures in the labor market are quietly easing. Eurostat reported on the same day that average wages in the eurozone rose 3.4% year-on-year in the first quarter, lower than the previous quarter’s 3.6% and the lowest since early 2021. The slowdown in wage growth helps alleviate the ECB’s concerns about a wage-inflation spiral.

Rate Hikes Loom, Policy Trade-Offs Become Tougher

Faced with stagflationary pressures, the ECB’s policy stance at next week’s meeting is the focus of market attention. Investors have fully priced in a 25-basis-point rate hike, and officials’ public statements broadly support tightening policy to address above-target inflation.

However, this GDP data makes the cost of rate hike decisions more clearly visible. Rory Fennessy pointed out that "recent performance of both soft and hard data suggests the biggest impact of current supply and inflation shocks on growth is yet to come. The upcoming ECB rate hike will further constrain the already weak credit environment."

The ECB is expected to release a new economic forecast at next week’s meeting; reports indicate officials may list second quarter activity as a contraction scenario. This means that while the central bank confirms its tightening stance, it must simultaneously convey a cautious assessment of growth downside risks to the market—a delicate balance between hawkish signals and guidance on the outlook, which will be a key focus at next week’s meeting.

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