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UK's FTSE 100 falls on renewed Middle East war jitters - Finance news and analysis from Global Banking & Finance Review
Finance

UK's FTSE 100 falls on renewed Middle East war jitters

Published by Global Banking & Finance Review

Posted on May 21, 2026

2 min read

· Last updated: May 21, 2026

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UK's FTSE 100 ends flat amid dimming hopes of progress in Iran talks

Market Performance and Influencing Factors

May 21 (Reuters) - Britain's blue-chip stock index ended flat on Thursday, as risk sentiment remained shaky following downbeat domestic data and persisting worries that the Middle East conflict could remain deadlocked.

The FTSE 100 closed 0.1% higher at 10,443.47 points, while the midcap FTSE 250 gained 0.5%.

Geopolitical Tensions and Economic Impact

Iran Nuclear Talks and Oil Prices

• Iran's supreme leader has issued a directive that the country's near-weapons-grade uranium should not be sent abroad, Reuters reported, hardening Tehran's stance on one of the main U.S. demands ​at peace talks.

• The prolonged conflict has already pushed up oil prices and intensified concerns about inflation.

Domestic Economic Data

Business Activity and Inflation

• Separately, a survey on Thursday showed that British companies were suffering the most widespread drop in activity in more than a year, due to the economic fallout from the war and political uncertainty at home.

• "These figures... lend some tentative support to other evidence that suggests the conditions for a long period of high inflation are not in place," said Paul Dales, chief UK economist at Capital Economics.

• Earlier this week, data showed that inflation in April was softer than expected, while the unemployment rate ticked up.

• Meanwhile, factory orders in May contracted at the fastest rate since September 2020, according to the Confederation of British Industry.

Sector and Stock Highlights

Top Performing Sectors

• Utilities were among the best-performing sectors on the day, followed by industrial metal miners and retailers

Notable Stock Movements

• Shares of automotive marketplace Autotrader slipped 8.8% after the company reported slower sales, and were the biggest laggard on the FTSE 100.

• Medical equipment and services shares fell 1.6%, dragged down by a near 5% drop in medical equipment maker Convatec, which flagged margin pressure.

Reporting Credits

(Reporting by Niket Nishant and Shashwat Chauhan in Bengaluru; Editing by Vijay Kishore and Alex Richardson)

Key Takeaways

  • FTSE 100 fell 0.43% by mid‑morning on May 21, pressured by fresh Middle East conflict jitters and downbeat domestic data.
  • Iran’s Supreme Leader ordered that near‑weapons‑grade uranium remain in the country, escalating diplomatic tensions. (reddit.com)
  • UK inflation eased to 2.8% in April—below expectations—cooling markets’ rate hike fears, though producer prices surged due to war‑related energy costs. (lse.co.uk)

References

Frequently Asked Questions

Why did the FTSE 100 fall on May 21?
The FTSE 100 dropped due to concerns about the Middle East conflict, rising oil prices, and negative economic data in the UK.
How is the Middle East conflict affecting UK markets?
The ongoing conflict has increased oil prices and created uncertainty, which has negatively impacted UK markets and investor sentiment.
What sectors were hit hardest on the FTSE 100?
Medical equipment and automotive sectors saw significant declines, with Convatec and Autotrader shares falling sharply.
How is UK inflation and unemployment trending?
Recent data showed that UK inflation was softer than expected in April, while unemployment rates ticked higher.
What economic challenges are British companies facing?
British companies reported the worst drop in activity in over a year, due to impacts from war-related economic fallout and domestic political uncertainty.

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