Andy Burnham, the former mayor of Manchester, is increasingly seen as a potential successor to Keir Starmer as the head of the Labour Party, and by extension, a candidate for Prime Minister. This possibility has drawn significant attention from bond markets, which are still keenly aware of the economic turbulence caused by Liz Truss’s mini-budget in 2022. Burnham previously stated that the UK should "get beyond this thing of being in hock to the bond market," a comment that initially concerned traders. However, he has since pledged commitment to existing fiscal rules, attempting to reassure investors.
Despite Burnham's recent assurances, bond investors are maintaining a "show me first" attitude. At the time of a recent report, real 10-year gilt yields were approximately 1.67%, nearing a 2026 high, and the pound was just above its lowest point for the year. This skepticism highlights the bond market's long memory and its wariness towards political leaders who might challenge financial orthodoxies. The market's reaction suggests that Burnham will need to be transparent and demonstrate fiscal responsibility to gain their confidence.
The broader economic context also plays a role. The UK's bond market is particularly sensitive due to its status as a major energy importer and an open international economy, making it vulnerable to global events like geopolitical risks. Domestically, uncertainty surrounding a change in leadership in Downing Street and the possibility of a less market-friendly Chancellor contribute to higher borrowing costs. Analysts suggest that increased borrowing is no longer a viable option for the next Prime Minister, leaving the government with the difficult choices of raising taxes, cutting spending, or implementing ambitious supply-side reforms. The ongoing impact of the Iran war is also expected to influence the economy, making any bond market instability particularly undesirable.
While Burnham's recent by-election victory in Makerfield did not trigger the bond market rout some had predicted, mainly because his win was priced in and he had promised to adhere to existing budget rules, future pronouncements from him or his team will be closely watched. There are concerns that if his administration plans significant borrowing for initiatives like nationalization of utilities without a clear plan for day-to-day spending, bond markets could react negatively. For instance, suggestions of substantial spending without addressing areas like pension reform (such as scrapping the triple lock, which some argue is no longer necessary given pensioners' improved living standards) could spook markets and drive up interest rates, hindering his agenda. Therefore, clear and realistic fiscal plans are considered essential to calm market anxieties and create space for other policy goals.
