FTSE Dips as Investors Weigh Trump's Iran Comments

Lingering energy market uncertainty and broker-driven stock moves contribute to London market decline.

Apr. 17, 2026 at 7:55am

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An extreme close-up of heavy, industrial banking equipment and machinery in muted tones, representing the complex financial infrastructure that underpins global markets.As geopolitical tensions and energy market uncertainty continue to roil global finance, the complex machinery of the banking system remains the foundation upon which markets rise and fall.Las Vegas Today

Stock prices in London opened slightly lower on Friday as investors weighed President Donald Trump's upbeat remarks on the Iran conflict against lingering energy market uncertainty and a flurry of broker-driven stock moves. The FTSE 100 index opened down 0.1%, while the FTSE 250 and AIM all-share also saw marginal declines.

Why it matters

The ongoing tensions between the US and Iran, as well as the impact on global energy markets, continue to be a key factor influencing investor sentiment and stock performance in the UK. This story highlights how geopolitical developments can drive short-term market volatility.

The details

The FTSE 100 index opened down 11.88 points, 0.1%, at 10,578.78. The FTSE 250 was down 9.61 points, marginally lower at 22,769.61, and the AIM all-share was up 2.67 points, 0.3%, at 800.47. In European equities, the CAC 40 in Paris was up 0.2%, while the DAX 40 in Frankfurt was up 0.1%. Oil prices were little changed, with Brent trading at $98.06 a barrel early Friday, down slightly from $98.39 late Thursday.

  • On Thursday, US President Donald Trump said 'the war in Iran is going along swimmingly' and predicted it 'should be ending pretty soon'.
  • Trump also said a second round of face-to-face negotiations between US and Iranian officials could take place 'probably, maybe, next weekend'.

The players

Donald Trump

The President of the United States, who has made optimistic remarks about the ongoing conflict with Iran.

Rachel Reeves

The UK Chancellor, who is preparing plans to reduce the link between gas prices and electricity costs.

Ed Miliband

The UK Energy Secretary, who is working with Chancellor Reeves on the plans to address energy pricing.

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What they’re saying

“It was perfect. It's perfect. It was the power we have. We had the most powerful military anywhere in the world.”

— Donald Trump, President of the United States

What’s next

The UK government is expected to outline its proposals to reduce the link between gas prices and electricity costs in the coming days.

The takeaway

The ongoing geopolitical tensions between the US and Iran, as well as the impact on global energy markets, continue to be a key driver of short-term volatility in the UK stock market. Investors will be closely watching for any developments in the conflict and the government's plans to address energy pricing.