Stable Market Minute - 26th May 2026: Iran Peace Deal Rattled by Fresh Strikes

Fresh US-Iran strikes and a Russian hypersonic missile barrage on Kyiv unsettle markets. Here's what treasurers need to watch this week.

Key takeaways

• US-Iran peace deal optimism has faded after fresh mutual strikes; near-term resolution looks unlikely.
• Russia's use of hypersonic missiles against Kyiv marks a further escalation — watch European energy prices.
• Oil at $96.50/bbl remains below $100 but is elevated enough to sustain cost pressure across supply chains.
• Thursday's US core PCE is the week's pivotal data point; a beat on 3.3% could further delay Fed rate cuts and lift USD.
• Andrew Bailey speaks Friday — his tone will shape near-term GBP direction and Bank of England rate expectations.
• Preliminary Eurozone CPI for May (consensus 2.9%) on Friday could move EUR/GBP for businesses with euro exposure.

Iran Deal Optimism Collapses Under Fresh Strikes

Over the bank holiday weekend, markets had begun to price in a degree of optimism around a potential US-Iran peace deal. That narrative unravelled quickly. In the past 24 hours, the US struck Iranian missile sites and boats, while Iran shot down a US drone. Washington framed the actions as self-defence, but the practical effect is a significant increase in uncertainty about whether a resolution is achievable in the near term.

President Trump had already been signalling he was in no rush to end hostilities, which tempered earlier optimism. The fresh exchange of fire reinforces that message. For businesses with exposure to oil prices or Middle East supply chains, the lack of a clear diplomatic path warrants close attention.

Russia Escalates: Hypersonic Missiles Strike Kyiv

Markets are also monitoring a re-escalation in the Russia-Ukraine conflict. Russia has deployed hypersonic missiles against infrastructure and facilities around Kyiv, and authorities have urged residents in the surrounding areas to evacuate immediately. Whilst this is not a new front in the conflict, the use of hypersonic weaponry signals an intensification that markets cannot ignore.

Energy prices and European risk sentiment are the primary transmission channels for UK and Eurozone-based businesses. Any sustained escalation could put fresh upward pressure on wholesale energy costs and weigh on the euro.

Where the Major Pairs Are Trading

As of this morning, sterling/dollar sits at 1.3475, euro/dollar at 1.1640, and sterling/euro at 1.1575. Oil is trading at $96.50 per barrel — still below the $100 threshold that has historically amplified inflationary pressure, but elevated enough to keep cost managers alert.

Key Data Events to Watch This Week

Wednesday brings Australian inflation figures alongside the Reserve Bank of New Zealand's interest rate decision and monetary policy statement. Neither directly drives GBP or EUR, but both feed broader risk appetite and can move commodity-linked currencies that affect global trade costs.

US Core PCE — Thursday's Critical Inflation Print

Thursday's US core Personal Consumption Expenditure (PCE) figures — the Federal Reserve's preferred inflation gauge — are the highlight of the week. Markets expect the annualised reading to tick up marginally from 3.2% to 3.3%. Given the run of inflationary surprises seen in recent weeks, a higher-than-expected print could push back Fed rate cut expectations further, strengthening the dollar and pressuring GBP/USD and EUR/USD.

Bailey Speaks and Eurozone Inflation on Friday

Friday is equally busy. Bank of England Governor Andrew Bailey takes the microphone — his remarks will be closely parsed for signals on how the MPC views the UK's economic trajectory and the timing of any rate adjustments. Separately, preliminary Eurozone inflation figures for May are due, with the market consensus sitting at 2.9%. A surprise in either direction could move EUR/GBP meaningfully, making this a significant session for any business managing cross-border euro exposure.

Next steps

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