As the political landscape in the UK becomes increasingly tumultuous, the financial markets are reacting sharply. The announcement from Andy Burnham, the Mayor of Greater Manchester, that he will contest a by-election, has led to a rise in government borrowing costs and a decline in the value of the pound. Analysts suggest that market apprehension regarding Burnham’s potential leadership is fuelling these financial shifts.
Market Reactions to Political Moves
The 10-year gilt yield, which represents the interest rate on government loans for a decade, climbed to 5.11% on Friday, up from 4.99% earlier in the day. Simultaneously, the pound weakened by 0.3% against the dollar, settling at $1.3371, a notable drop that came on the heels of Burnham’s announcement. Kathleen Brooks, research director at XTB, commented that the pound’s decline this week totals 1.5%.
“This is indicative of Burnham being perceived as the least market-friendly candidate,” she remarked. Brooks contrasted this with the minimal impact on the pound following Wes Streeting’s resignation, highlighting Burnham’s polarising effect on investor sentiment.
Broader Economic Implications
Long-term borrowing costs also followed suit, with the yield on 30-year gilts increasing to 5.779%. The broader European context saw similar movements, although the UK’s shifts were more pronounced. Concerns surrounding the ongoing conflict in Iran, which is anticipated to elevate inflation due to rising energy prices, are further complicating the financial picture. The price of Brent crude oil surged past $109 per barrel, intensifying worries about the economic fallout.
Investors are wary that a Burnham-led government might escalate Britain’s already substantial public borrowing. In a previous interview with the New Statesman, Burnham suggested that the government should move “beyond being in hock to the bond markets,” a statement that has contributed to the current unease among investors.
Leadership Contest and Political Uncertainty
Russ Mould, investment director at AJ Bell, noted that while Burnham’s path to Parliament is not guaranteed, his remarks have already had a negative impact on borrowing costs and the pound. He indicated that any involvement from Burnham in the leadership race could lead to prolonged uncertainty, which markets typically dislike.
Brooks echoed this sentiment, citing two principal factors weighing on the pound and government borrowing costs: the potential leftward shift in government policies and the ongoing leadership chaos. “UK politics is a mess,” she stated, cautioning that signs of foreign investors retreating from the gilt market are already emerging.
The Road Ahead for Burnham
Burnham’s bid for parliamentary re-entry now hinges on securing the local party’s nomination for the Makerfield constituency, following the announcement that MP Josh Simons will step down. “We will change Labour for the better and make it a party you can believe in again,” Burnham declared, promising to restore faith in the political system.

However, his ascent to leadership remains uncertain. The looming by-election is expected to be competitive, especially against contenders like Reform UK, making Burnham’s journey fraught with challenges.
Why it Matters
The current political upheaval and the subsequent market responses underscore a pivotal moment for the UK economy. As the potential for a leftward shift in governance raises concerns about fiscal policy and public borrowing, investors are left grappling with uncertainty. The volatility of the pound and rising borrowing costs reflect broader anxieties about the nation’s economic stability and governance, setting a crucial stage for future political developments and their impact on the financial landscape.
