UK economy contracts 0.1% in April as Iran war drives up energy costs
April decline follows a 3% expansion in March; Iran's closure of the Strait of Hormuz cited as the primary drag on growth
Briefing
- The UK economy shrank 0.1% in April, ending the momentum from a strong first quarter, as higher energy prices triggered by the Iran conflict fed through to businesses and consumers.
- Iran's closure of the Strait of Hormuz, a critical artery for global energy trade, directly elevated UK energy costs and weighed on activity.
- March GDP had risen 3%, making April's reversal the first contraction after a period of marked expansion.
- City analysts flag that political uncertainty around the Labour Party's leadership added a secondary drag on activity beyond the energy shock.
- The April print is expected to set the tone for second-quarter GDP tracking, with the energy price channel still open and no resolution to the Strait of Hormuz closure in sight.
Analysis
- UK gilt yields face upward pressure over the next two to three months as the April contraction forces a stagflationary read: energy-driven inflation keeps the Bank of England from cutting while weakening activity undermines the fiscal position. The energy price channel through the Strait of Hormuz remains open, meaning the Q2 GDP tracking estimate absorbs another month of elevated costs. This mirrors the ECB's bind, where a 25bp hike was forced by the same Iran-war energy shock despite softening growth.
- Sterling weakens on a trade-weighted basis over the next four to six weeks as the April GDP miss compounds Labour leadership uncertainty, removing the positive rate-differential support that had partially offset prior energy-cost headwinds. With the ECB now hiking and the BoE paralysed by stagflation, the euro-sterling cross shifts in the euro's favour as eurozone rate expectations diverge upward from UK rate-cut repricing.
- UK energy-intensive sectors, including industrials, chemicals, and commercial real estate, face a double compression: higher input costs from the Strait of Hormuz disruption and weaker final demand signalled by the GDP contraction. Political uncertainty around Labour leadership adds a third drag on capital expenditure decisions, meaning any domestic recovery catalyst is delayed until the leadership question resolves.
Historical Context
- 2023
The ECB's final 2023 rate hike cycle ended in September of that year after overtightening into a eurozone slowdown. The institution has now reversed course with a 25bp hike driven by the same Iran-war energy shock affecting the UK, establishing that both European central banks are constrained by external energy supply disruption rather than domestic demand dynamics.
- 2022
The UK experienced a severe energy-driven stagflation episode following Russia's invasion of Ukraine, with the Bank of England forced to hike into a contracting economy. The transmission mechanism, wholesale energy costs feeding into business input prices and consumer bills, is identical to the current Strait of Hormuz channel, including the political paralysis that delayed fiscal response.
- 1973-1974
The Arab oil embargo created the original stagflation template: supply-side energy shocks producing simultaneous inflation and contraction, leaving central banks unable to cut without worsening inflation and unable to hike without deepening recession. The Strait of Hormuz closure replicates this supply shock structure with comparable transmission speed into UK industrial and consumer prices.
Connected Events
ECB raises rates for first time since 2023 as Iran war lifts energy costs
The ECB raised its deposit rate to 2.25% citing the same Iran-war energy cost transmission now contracting UK GDP, confirming the Strait of Hormuz closure is producing synchronised stagflationary pressure across both major European economies simultaneously.
Gold hits 6-month low as rate-rise fears and technical breakdown drive selloff
Gold's failure to rally on US military strikes against Iran, now confirmed at a six-month low, signals that energy-geopolitical risk premium is being absorbed into rates expectations rather than safe-haven assets, meaning the UK stagflation shock has no conventional hedge available in bullion markets.
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