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Britain's main indexes gain over 1% on hopes of Middle East peace deal - Finance news and analysis from Global Banking & Finance Review
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Britain's main indexes gain over 1% on hopes of Middle East peace deal

Published by Global Banking & Finance Review

Posted on June 12, 2026

2 min read

· Last updated: June 12, 2026

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UK shares clock weekly gains as Iran-US peace deal hopes push oil price lower

By Tharuniyaa Lakshmi and Shashwat Chauhan

Market Performance and Economic Impact

FTSE Indexes Rally Amid Peace Deal Hopes

June 12 (Reuters) - UK shares gained in a broad-based rally on Friday amid growing hoping of a peace agreement between Iran and the U.S., which sent crude oil prices lower, with both the midcap and blue-chip indexes clocking weekly gains.

The blue-chip FTSE 100 index closed 1.6% higher at 10,471.7 points, its highest closing level since May 27. The midcap FTSE 250 also jumped 1.6% — its best single-day percentage gain in over five-weeks.

Weekly Gains Across Indexes

• Both indexes also clocked an over 1% gain for the week.

Iran-US Peace Deal Developments

• A Western source told Reuters that if language could be agreed upon, the memorandum could be signed as soon as Sunday by U.S. Vice President JD Vance and Iran's parliament speaker, Mohammed Baqer Qalibaf, with Geneva for now seen as the likeliest venue.

Sector Performance Breakdown

Energy and Oil Price Movements

• Most FTSE 350 sub-indexes were in the green, except energy, which fell 1.8% after oil prices slipped more than 3%.

Travel, Leisure, and Airline Stocks

• The travel and leisure sub-index, which includes oil price-sensitive airlines, also advanced 3.9%. British Airways owner IAG and budget carrier Wizz Air Holdings were among the top gainers.

Banking and Defence Sectors

• Heavyweight banks jumped 4.2%, while aerospace and defence added 2.2%.

Company-Specific Movements

• McBride slid 14.6% after the private-label cleaning products maker warned profits over the next two years would fall short of expectations.

UK Economic Indicators

GDP Contraction

• Britain's economy contracted 0.1% in April, its first monthly drop since August 2025, the Office for National Statistics (ONS) said.

Analyst Insights

• "We had anticipated a growth slowdown in response to the energy shock, and the April data are starting to hint at that. We expect more weakness in consumer-related spending to come as inflation moves higher and restrains real incomes," J.P. Morgan analysts said in a note.

Inflation Expectations

• Separately, the British public's expectations for inflation in the long term rose to a record high last month, the Bank of England's quarterly inflation attitudes survey showed on Friday.

Reporting Credits

(Reporting by Tharuniyaa Lakshmi and Shashwat Chauhan in Bengaluru; Editing by Sahal Muhammed and Joyjeet Das)

Key Takeaways

  • FTSE‑100 rose 1.1% to 10,414.02 and FTSE‑250 climbed 1.5% as optimism mounted over a possible U.S.‑Iran peace agreement (fidelity.com).
  • Oil prices tumbled more than 4% on the news, dragging the energy sub‑index down 3.6%, while homebuilders and travel/leisure stocks led gains (apnews.com).
  • ONS data confirmed a 0.1% month‑on‑month contraction in UK GDP in April, its first since August 2025, suggesting the economy is starting to feel fallout from the Middle East conflict (streetinsider.com).

References

Frequently Asked Questions

Why did Britain's FTSE indexes rise over 1%?
Hopes for a peace deal between the U.S. and Iran boosted investor confidence and pushed Britain's major stock indexes higher.
Which UK sectors saw the biggest stock gains?
Homebuilders led gains, with Vistry Group, Bellway, and Persimmon rising sharply. The travel and leisure sector also performed strongly.
How did the energy sector perform?
The energy sector declined by 3.6% due to a more than 4% drop in oil prices after the peace deal news.
What recent economic data was released for Britain?
Britain's economy contracted by 0.1% in April, marking its first monthly decline since August 2025, amid impacts from global conflict.
How have inflation expectations shifted in the UK?
The Bank of England reported that long-term inflation expectations among the British public have reached a record high.

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