Chancellor John Healey is confronting significant challenges as global borrowing costs surge, creating a "perfect storm" in the bond markets. This pressure is primarily driven by rising oil prices, heavy government borrowing, inflation worries, and a spike in AI-related debt issuance, which are pushing long-term yields to multi-decade highs across major economies. For the UK, 30-year gilt yields have climbed above 5.85%, nearing the 28-year highs seen earlier in the year, and benchmark 10-year gilts were sold at a yield of up to 5.155%, the highest since 2007. These elevated borrowing costs are expected to complicate Healey's first Budget in October, making it harder to fund growing spending pressures.
Investors are expressing apprehension over Prime Minister Andy Burnham's high-spending initiatives, which include a substantial council-house building program, social care reforms, and an increase in the defense budget. These plans have contributed to UK borrowing costs remaining the highest among G7 nations. Analysts like Axel Rudolph of IG note that bond markets are facing a "perfect storm," leading to increased jitters. There are fears that Healey might need to implement further tax increases or resort to more borrowing to finance these projects, a task made more difficult by rising gilt yields.
Despite some relief for mortgage holders due to weak UK jobs figures easing fears of an immediate Bank of England interest rate hike, the bond market's actions are poised to translate into higher borrowing costs across the broader economy. Globally, the sell-off has seen 30-year US Treasury yields reach over 5.33%, their highest since 2007, and 10-year Japanese borrowing costs hit a three-decade high of almost 3%. In Germany, the 30-year Bund yield topped 3.78%, the highest since 2011, and the French equivalent reached 4.91%, its highest since 2008.
Healey's proposed £9 billion annual increase in borrowing to invest in infrastructure, housing, and business has been met with caution from analysts. While this spending could technically fit within Starmer-era fiscal rules if investments offset costs, investors like Richard Carter of Quilter view it as "small fry" but still a concern given the UK's "precarious fiscal position." Oliver Faizallah of Raymond James warned of investor nervousness leading up to the Budget, predicting demands for higher interest payments on long-term bonds if worries about the government's fiscal stance persist. The bond market favors predictability and discipline, punishing governments perceived as fiscally irresponsible, making Healey's communication of how these investments will generate returns crucial to calm markets.
