Currencies April 28, 2026 08:35 AM

Pound Weakens as Iran Ceasefire Plan Stalls and Oil Gains Reignite Market Caution

Sterling and euro slip against dollar amid rising oil prices and cautious investor positioning ahead of key central bank meetings

By Priya Menon
Pound Weakens as Iran Ceasefire Plan Stalls and Oil Gains Reignite Market Caution

Sterling and the euro declined versus the dollar on Tuesday after a tepid reaction in Washington to Iran's proposed interim ceasefire - a plan that would reopen the Strait of Hormuz while postponing nuclear negotiations. The softer reception helped push oil higher and reintroduced uncertainty across markets. Despite these developments, the dollar has not mounted a decisive rally, with resilient US equity markets and month-end rebalancing flows acting as counterweights.

Key Points

  • Sterling and the euro fell against the dollar as a lukewarm US response to Iran's interim ceasefire plan lifted oil prices and stirred market uncertainty. Sectors impacted: energy and FX-sensitive exporters.
  • The dollar has not mounted a decisive rally due to resilient US equity markets and month-end rebalancing flows acting as mechanical headwinds. Sectors impacted: global equities, asset managers handling rebalancing.
  • Investors have rotated into high-beta commodity currencies - AUD, NZD, NOK and CAD - but those positions remain vulnerable to upcoming US tech earnings and central bank messaging. Sectors impacted: commodity-linked currencies and cyclical sectors including materials and industrials.

Sterling and the euro fell against the US dollar on Tuesday as markets reacted to fresh developments in the Gulf and prepared for a packed central bank calendar. Iran's proposed interim ceasefire, which would reopen the Strait of Hormuz while postponing nuclear talks, met with a cool reception in Washington. That reaction lifted oil prices and revived risk-off considerations that have rippled through currency markets.

At 08:35 ET (12:35 GMT), GBP/USD was down 0.5% at 1.3476, while EUR/USD had slipped 0.3% to 1.1691. The larger backdrop, however, did not deliver a straightforward boost to the dollar. Market participants noted the greenback has been unable to convert the weak risk tone into sustained gains.

Analysts at ING highlighted two principal factors limiting dollar momentum. First, US equity markets have shown unusual resilience, and corrections elsewhere remain contained. ING emphasised that EUR/USD presently exhibits a stronger correlation to global equities than to either oil moves or short-term rate differentials, weakening the classic safe-haven bid for the dollar. Second, month-end rebalancing flows are creating a mechanical headwind for the dollar because of US equity outperformance through April.

Those conditions have encouraged a rotation into higher-beta commodity-linked currencies. The Australian dollar, New Zealand dollar, Norwegian krone and Canadian dollar have attracted flows as investors chase carry and cyclical exposure. ING cautioned, however, that these positions are vulnerable to corporate results from major US technology companies due to the outsized sensitivity of US equity indices to earnings updates relative to geopolitical headlines. Alphabet, Microsoft, Amazon and Meta were cited as upcoming earnings that could influence sentiment.

ING's analysis suggests that when month-end flows abate, dollar appreciation could quicken - unless substantive progress materialises in Gulf negotiations. For the immediate session, the market's attention will also include US consumer confidence data. With a Federal Open Market Committee decision due on Wednesday, many traders are expected to adopt a wait-and-see stance, keeping volatility in dollar currency pairs somewhat contained.

In Asia, the Bank of Japan's policy decision met expectations but signalled notable division among policymakers. The BoJ held its policy rate at 0.75%, as anticipated, but the 6-3 split in the vote was the most divided since Kazuo Ueda assumed the governorship. ING interpreted the split as a sign of growing momentum toward further policy normalisation. Markets are now placing a 74% probability on a BoJ rate increase at the June 16 meeting, an outcome that traders will watch closely for its implications on USD/JPY later in the week.

For the euro, the European Central Bank's meeting on Thursday is the primary near-term risk. ING noted that EUR/USD is trading roughly 0.5% below its short-term fair value estimate. Supportive rate differentials and the relative strength in equities have helped offset the drag from higher oil prices. Market-implied rate expectations have moved more hawkish over the past week, effectively raising the bar for the ECB to match. ING does not expect the Governing Council to resist a summer rate hike, but a cautious commentary could disappoint markets. ING added that a material dovish surprise would be required to push EUR/USD sustainably below the 1.1700 level, unless optimism about a Gulf resolution weakened further.

Sterling's path this week was described as largely contingent on broader dollar dynamics and overall market risk appetite. With no immediate Bank of England action expected to provide a directional catalyst, sterling's moves are likely to track developments in the greenback and shifts in investor sentiment tied to geopolitical and earnings-related news.


Market context and near-term focus:

  • Oil price strength after the tepid Washington response to Iran's ceasefire proposal has reintroduced uncertainty.
  • The dollar's inability to capitalise reflects resilient US equities and mechanical month-end outflows tied to US equity outperformance.
  • Traders will monitor US consumer confidence and Wednesday's FOMC decision, with Thursday's ECB meeting and potential BoJ policy moves also central to near-term FX direction.

Risks

  • Geopolitical uncertainty tied to negotiations in the Gulf could lift oil prices further and keep FX markets unsettled, affecting energy and transportation sectors.
  • Disappointing earnings from major US technology companies could trigger equity volatility that would erase recent gains in commodity currencies and pressure risk-sensitive assets.
  • Central bank outcomes and commentary - specifically Wednesday's FOMC, Thursday's ECB meeting and future BoJ rate expectations - could produce abrupt shifts in currency directions, impacting exporters, importers and cross-border capital flows.

More from Currencies

BofA Flags Renewed Pressure on South Korean Won as Outbound Investment Surges Apr 28, 2026 Yen Strengthens After BOJ Flags Possible Tightening; Dollar Holds Ahead of Fed Apr 28, 2026 Venezuela Central Bank Sees Exchange-Rate Stability and Slowing Inflation Ahead Apr 27, 2026 Pound and Euro Tick Up as Iran Report Boosts Risk Appetite Ahead of Central Bank Week Apr 27, 2026 BofA Urges Clients to Hedge Sterling Ahead of Historically Weak May Apr 27, 2026