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London shares slip after PM Starmer says will resign

Published by Global Banking & Finance Review

Posted on June 22, 2026

3 min read

· Last updated: June 22, 2026

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London’s FTSE Index Slips as PM Starmer Resigns, Fueling Market Uncertainty

By Johann M Cherian

FTSE Performance and Political Developments

June 22 (Reuters) - London's domestically focussed FTSE index slipped to a one-week low on Monday, bogged down by political uncertainty after Prime Minister Keir Starmer said he will resign.

The internationally focussed FTSE 100 index slipped 0.1% by 0930 GMT, while the midcap FTSE 250 dropped 0.7%.

Leadership Transition and Market Sentiment

Greater Manchester mayor Andy Burnham, who recently won parliamentary elections, stands as the top candidate for prime minister, although investors say a change in leadership is unlikely to change conditions a lot.

Analyst Perspectives on Political Change

"Britain's been going in the wrong direction and I don't really think, unfortunately, that any replacement for Keir Starmer, is going to be much different," said David Morrison, senior market Analyst at Trade Nation.

Sectoral Impact and Currency Movement

Rate-sensitive household goods and home-construction stocks fell over 1% and were among top sectoral decliners while the pound eased 0.1% versus the dollar.

Leadership Race and Party Dynamics

Former health minister Wes Streeting is also in the leadership race, but one senior figure in the party said they believed Streeting could do a deal with Burnham, giving him a senior role if he stayed out of the contest.

Potential Cabinet Changes

"I rather think that Rachel Reeves will probably be gone fairly soon. If we find out that Wes Streeting isn't going to stand and gives Burnham his full support, then he might get rewarded with something like Chancellor of the Exchequer," Morrison said.

Reeves was the Chancellor in the government led by Starmer, whose resignation paves the way for Britain to have its seventh leader in a decade.

Fiscal Policy and Economic Concerns

The next candidate will be scrutinized over fiscal policy plans at a time when concerns over debt-backed public spending has sent the yield on the benchmark 10-year Gilt to its to its highest since 2008.

Public Sentiment and Debt Issues

Citizens have been disappointed over Starmer's handling of the economy as public debt and borrowing costs soared in recent years.

Interest Rate Outlook Amid Geopolitical Tensions

Geopolitical tensions in the Middle East also had investors price in no change to interest rates by the Bank of England this year, according to LSEG-compiled data.

FTSE 250 Performance

Economic and political uncertainty, alongside geopolitical concerns, have weighed on the domestically focused midcap FTSE index, which underperforms the blue-chip FTSE 100 index this year.

Mergers, Acquisitions, and Corporate News

In M&A news, easyJet rose 3.1% and was among top movers on the FTSE 250 index after Castlelake disclosed its £4.74 billion ($6.26 billion) takeover bid for the budget carrier. The airline had rejected three proposals from the U.S. investment firm.

Babcock International lost 5.2% after the defence and engineering group reported a 19% drop in annual underlying operating profit.

Global Factors and Historical Context

Globally, there was some relief that negotiations to end the U.S. and Iran conflict were continuing. However, investors awaited clarity that shipping would resume through the Strait of Hormuz.

This week would also mark 10 years since Britain decided to leave the European Union.

(Reporting by Johann M Cherian in Bengaluru; Editing by Joyjeet Das)

Key Takeaways

  • FTSE 100 dropped ~0.1%, FTSE 250 declined ~0.7% by 09:30 GMT amid increased political uncertainty following Starmer’s resignation statement.
  • Starmer will remain as caretaker until a successor is chosen, with Greater Manchester Mayor Andy Burnham viewed as the likely new Labour leader.
  • Investors remain cautious, viewing leadership change as unlikely to significantly alter economic conditions in the near term.

Frequently Asked Questions

Why did London shares slip after PM Keir Starmer announced his resignation?
London shares fell due to increased political uncertainty following PM Keir Starmer's announcement to resign, raising investor concerns about the future of economic policies.
Which FTSE indices were affected by the resignation of Keir Starmer?
Both the FTSE 100 index and the midcap FTSE 250 index saw declines, with the FTSE 100 slipping 0.1% and the FTSE 250 dropping 0.7%.
Who are the main candidates to replace Keir Starmer as UK Prime Minister?
Greater Manchester mayor Andy Burnham and former health minister Wes Streeting are leading candidates, with speculation about potential deals between them.
How did the market react to sectoral news and M&A activity?
Household goods and home-construction stocks fell over 1%. EasyJet shares rose 3.1% after a takeover bid, while Babcock International dropped 5.2% on weak profits.
What other factors contributed to the market uncertainty?
Concerns over UK public debt, borrowing costs, and ongoing geopolitical tensions, especially in the Middle East and Strait of Hormuz, also impacted investor sentiment.

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