The British pound is on track for its most significant decline in 18 months, as market analysts react to the potential candidacy of Manchester Mayor Andy Burnham against current Labour leader Keir Starmer. This political uncertainty, alongside rising oil prices and heightened inflation concerns, has shaken investor confidence, leading to a drop in the currency’s value.
Pound Declines as Leadership Tensions Rise
As of Friday, sterling had fallen by approximately three cents, or 2.2%, settling at $1.332, marking a five-week low. This drop represents the steepest weekly downturn against the US dollar since Donald Trump’s election victory in November 2024. The decline has been exacerbated by ongoing tensions within the Labour Party, particularly following Burnham’s announcement of his intention to run for parliament in the north-west constituency of Makerfield.
Kathleen Brooks, research director at XTB, noted, “The pound is weakening this morning after a sharp drop on Thursday, when Andy Burnham threw his hat into the ring. This is indicative of Burnham being seen as the least market-friendly of the potential candidates.” Her comments highlight a growing concern that Burnham’s leadership could destabilise the fiscal landscape.
Rising Government Borrowing Costs
Alongside the pound’s decline, UK government borrowing costs have surged, reflecting a broader sell-off of sovereign debt. The yield on UK 10-year bonds has risen to 5.18%, its highest since 2008, surpassing the 18-year peak reached earlier this week. Similarly, thirty-year bond yields climbed to 5.85%, marking a significant increase.
Market analysts attribute this rise to fears that a Burnham premiership could lead to a loosening of the UK’s fiscal discipline and increased borrowing to finance higher public spending. Neil Wilson, an investor strategist at Saxo UK, expressed concerns about the implications of appointing a left-leaning prime minister, suggesting that the bond market might impose fiscal discipline, albeit with considerable volatility in the interim.
Political Landscape and Future Challenges
Despite Burnham’s rising profile, he faces substantial hurdles before potentially challenging Starmer. He must first secure a seat in a byelection for Makerfield, a constituency where Reform UK performed well in recent local elections, and where the Green Party could also pose a challenge. The sitting MP, Josh Simons, has a slender majority of just over 5,000 votes, adding to the difficulty of Burnham’s path back to Westminster.
Bill Diviney, head of macro research at ABN Amro, highlighted Burnham’s popularity, noting that he is the only major UK politician with a net positive approval rating according to YouGov polls. “Manchester mayor Andy Burnham is by far the most popular among the general public,” Diviney stated, emphasising the potential for Burnham to galvanise public support.
The Role of Fiscal Policies
A stabilising factor could be the retention of Rachel Reeves as Chancellor, which would signal continuity in fiscal policies and potentially reassure markets. Analysts believe that maintaining her role could help mitigate volatility and reinforce commitment to fiscal rules that have kept the markets relatively stable.
Why it Matters
The current political climate surrounding the Labour Party has significant implications for the UK economy and the stability of the pound. As markets react to leadership uncertainties and possible shifts in fiscal policy, the resulting volatility could affect investment decisions and long-term economic forecasts. Investors will be closely monitoring developments in Labour’s leadership dynamics, as these could play a crucial role in shaping the UK’s financial landscape in the months ahead.
