Britain's pound, stocks and bonds fall on political uncertainty, global inflation angst - Finance news and analysis from Global Banking & Finance Review
Finance

Britain's pound, stocks and bonds fall on political uncertainty, global inflation angst

Published by Global Banking & Finance Review

Posted on May 15, 2026

3 min read

· Last updated: May 15, 2026

Add as preferred source on Google

UK Pound, Stocks, and Bonds Drop on Political Uncertainty and Inflation Worries

Market Reaction to Political and Economic Turmoil

By Samuel Indyk

UK Assets Under Pressure

LONDON, May 15 (Reuters) - British government bonds, stocks and sterling fell on Friday, as domestic political uncertainty clashed with global worries about an inflationary shock, leaving UK assets in the mire.

Sterling fell to a five-week low and is down almost 2% against the dollar this week, set for its biggest weekly drop since November 2024.

Political Uncertainty Intensifies

British Prime Minister Keir Starmer was in a battle to hold on to power after his health minister Wes Streeting resigned from government, while others positioned themselves to challenge his leadership, following disastrous local election results last week.

Markets are concerned that a new leader may be willing to loosen fiscal policy more, with British government borrowing costs up sharply again and UK bank stocks selling off on Friday.

Potential Leadership Challenge

Greater Manchester Mayor Andy Burnham has been offered a path for a possible leadership challenge after another Labour lawmaker said he would resign his parliamentary seat. If Burnham were to win the seat, he could then challenge for the party leadership.

"Market's fear is that Burnham would be more left leaning, and we could see further increase in deficits," said Jefferies economist Mohit Kumar.

"Our base case is one of a managed exit for Starmer and Burnham likely becoming the next PM," he added.

Global Economic Pressures

The domestic political drama has coincided with another rise in energy prices on Friday and growing evidence that the economic damage from the Iran war is hurting.

U.S. inflation data this week has shown consumers and factories are starting to see big increases in price pressures as a result of the war, which has pushed up the price of crude by over 50%.

Impact on the Pound and Markets

The pound has tended to suffer against the dollar when tensions between Washington and Tehran flare or oil prices rise, given Britain's dependence on energy imports and the economy's sensitivity to higher fuel costs.

It was last down 0.3% on the day at $1.3364 after earlier touching $1.3335, its lowest level in over five weeks.

British bond yields jumped across the curve. The 10-year yield was last up almost 12 basis points (bps) at around 5.11%. Bond yields move inversely with prices.

Stocks also fell. The blue-chip FTSE 100 was last down 0.6%, while the more domestic-oriented FTSE 250 index of midcap stocks was down 1.1%.

UK banks were also down sharply, with Barclays and Lloyds down over 2% each.

(Reporting by Samuel Indyk; Editing by Dhara Ranasinghe)

Key Takeaways

  • Sterling weakened to around $1.3335–$1.3364, its lowest in over five weeks, logging a nearly 2 % weekly drop — the biggest since November 2024 (kiplinger.com).
  • Resignation of Health Secretary Wes Streeting escalated Labour Party's internal crisis and fuelled investor fears of fiscal loosening under potential new leadership (apnews.com).
  • Global inflation concerns rose as higher energy prices driven by the Iran war worsened U.S. inflation data, amplifying pressure on UK bonds and stocks (axios.com).

References

Frequently Asked Questions

Why did the British pound, stocks, and bonds fall?
Domestic political uncertainty and global inflation concerns caused the British pound, stocks, and bonds to decline.
How did global inflation affect UK markets?
Rising global inflation, partly due to higher energy prices from the Iran war, contributed to the decline in UK assets.
How did the FTSE indexes perform amid the turmoil?
The FTSE 100 fell by 0.6% and the FTSE 250 fell by 1.1% as market uncertainty intensified.
What impact did the events have on UK banks?
UK bank stocks like Barclays and Lloyds dropped over 2% each amid the broader market decline.

Tags

Related Articles

More from Finance

Explore more articles in the Finance category