UK Economy Faces Recession if Strait of Hormuz Remains Closed

EY’s latest economic outlook warns that if the Strait of Hormuz stays shut until mid‑2027, the United Kingdom’s growth will sharply decelerate and could even contract.

Economic Fallout of a Prolonged Closure

EY UK chief economist Peter Arnold lifted the 2023 growth forecast from 0.8% to 0.9%, but under a closure scenario the model projects 0.5% growth in 2026 and a ‑0.2% contraction in 2027.

■2023 growth: 0.9% (revised)

■2026 growth (closed): 0.5%

■2027 contraction (closed): ‑0.2%

■2026‑2027 growth (reopen Q3 2024): 0.9% and 1.2%

Energy Market Shock and Inflation Upside

The strait carries roughly 20% of global oil and gas flows; while Brent fell about 5% after the tension eased, prolonged disruption could push energy costs higher, lifting inflation expectations to 4% next year.

■Global oil throughput via strait: 20%

■Brent price dip: 5%

■Anticipated inflation rise: 4% (2024‑2025)

■UK CPI risk ceiling: above 4%

Corporate Countermoves: AstraZeneca‑BMS Deal and easyJet Bidding War

At the same time, major corporate moves are unfolding. AstraZeneca is in talks with Bristol‑Myers Squibb, a merger that could create a $400 billion pharma powerhouse. Meanwhile, low‑cost carrier easyJet is juggling offers from Castlelake and Apollo, with an EU review adding regulatory uncertainty.

■AstraZeneca market cap: £196 bn

■Bristol‑Myers Squibb market cap: $133 bn

■Potential combined value: $400 bn

■easyJet latest bid: £5.7 bn (Apollo)

■easyJet profit plunge: 70% (fuel cost surge)

Policy and Market Reactions

UK Chancellor John Healey warned of vigilant monitoring of price gouging, while the Bank of England kept its policy rate steady, cautioning that further escalation could push inflation above 4%, tightening household finances.

■UK policy rate: 5.25% (hold)

■BoE inflation target: 2%

■Possible rate hike scenario: 0.5% points

■Geopolitical risk: Iran‑US tension

The UK's macro outlook is now tightly linked to the operational status of the Strait of Hormuz. A 0.5% growth versus ‑0.2% contraction range signals that policymakers must accelerate structural reforms and pivot toward high‑value sectors to cushion the shock. Meanwhile, the AstraZeneca‑BMS merger and the easyJet bidding contest will steer capital flows and set the tone for risk premiums across European equities.