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Sterling steady as US-Iran tensions flare up again - Finance news and analysis from Global Banking & Finance Review
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Sterling steady as US-Iran tensions flare up again

Published by Global Banking & Finance Review

Posted on July 8, 2026

2 min read

· Last updated: July 8, 2026

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Sterling Remains Steady Despite US-Iran Tensions and UK Political Developments

Market Reactions Amid Geopolitical and Domestic Uncertainty

By Sophie Kiderlin

Impact of US-Iran Tensions on Financial Markets

LONDON, July 8 (Reuters) - The pound held steady on Wednesday as U.S. President Donald Trump said that an interim agreement to end the war with Iran was "over" after Tehran carried out new attacks on U.S. bases in the Gulf.

Oil Prices Surge Following Trump’s Comments

Brent crude futures jumped after Trump's comments, made before a NATO summit in Turkey, and were last up 5.61% to $78.36 a barrel. 

Currency Market Response

The reaction in currency markets was relatively muted, with the U.S. dollar index last little changed on the day.

Sterling and Euro Movements

Sterling was largely flat at $1.3351, having hit its highest level since June 17 against the greenback on Tuesday.

Against the euro, the pound was a touch weaker on the day at 85.47 pence. That left sterling just shy of recent 13-month highs against the euro.

UK Political Developments and Market Sentiment

Domestic issues were also in focus, with former Greater Manchester mayor Andy Burnham widely expected to succeed Keir Starmer as prime minister later this month. 

Uncertainty Over New Leadership

"We still don't know an awful lot about the policies of Burnham, assuming that he is the next Prime Minister," Jane Foley, head of FX strategy at Rabobank, said. 

"And we certainly don't know who his cabinet picks are going to be," she added. 

Implications for UK Fiscal Policy

Markets are especially wary of what a new government could mean for Britain's stretched finances and are waiting to see who the next finance minister will be. Online betting platform Polymarket was last indicating a 51% chance of left-leaning former energy minister Ed Miliband taking on the role. 

"Who is going to be Chancellor is going to give signals to the market as to whether or not we are going to see a chancellor that will try and tighten those purse strings or not," Foley said. 

"And I think that could really set the tone for sterling through the summer and into the autumn."

(Reporting by Sophie Kiderlin, editing by Andrew Heavens)

Key Takeaways

  • Oil prices surged over 5 % after U.S. President Trump declared the Iran interim ceasefire “over,” but currency markets—including sterling—remained relatively stable, with the pound trading at ~$1.3351 and ~85.47 pence per euro.
  • Andy Burnham is the frontrunner to succeed Keir Starmer as UK prime minister—likely by mid‑July—with pledges of fiscal discipline, regional devolution, and maintaining current borrowing limits helping to reassure markets.
  • Uncertainty over Burnham’s fiscal team remains—Ed Miliband is emerging as a plausible candidate for Chancellor, a decision closely watched for signals on austerity and market confidence.

Frequently Asked Questions

How did the sterling respond to renewed US-Iran tensions?
Sterling held steady against the US dollar and was only slightly weaker against the euro, showing muted reaction to the renewed tensions.
What happened to Brent crude futures after Trump's comments?
Brent crude futures jumped by 5.61% to $78.36 a barrel following Trump's comments about the US-Iran situation.
Who is expected to become the UK's next prime minister?
Former Greater Manchester mayor Andy Burnham is widely expected to succeed Keir Starmer as prime minister later this month.
What is the current market view on Ed Miliband becoming finance minister?
Online platform Polymarket indicates a 51% chance of Ed Miliband, a former energy minister, taking the finance minister role.

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