UK government borrowing costs rose above 5% after renewed fighting between the United States and Iran pushed oil and gas prices higher. The increase in gilt yields reflects growing concern about inflation, further Bank of England interest-rate rises and pressure on the public finances, mortgages and business borrowing.
City traders have reportedly built short positions of about £7 billion against sterling as markets assess the prospect of an Andy Burnham premiership. The move reflects concern over Britain’s fiscal outlook, borrowing costs and uncertainty around future tax and spending plans. But the reaction is not a simple verdict on Burnham: the pound has also recovered when he has committed to existing fiscal rules, showing that markets are watching for credible detail rather than rejecting political change outright.
The pound weakened and UK government bonds remained cautious after Sir Keir Starmer announced his resignation as prime minister. Markets appear to have priced in much of the political risk, but attention is now turning to Andy Burnham, the leadership timetable, the next chancellor and whether the UK’s fiscal rules will remain credible.
The pound has weakened as speculation over Sir Keir Starmer’s future adds to concerns over UK political stability, borrowing costs and fiscal credibility. Markets may tolerate a change of prime minister, but they are likely to prefer a swift and orderly transition over a summer of uncertainty.
The FTSE 100 edged higher as investors weighed hopes of a US-Iran agreement against uncertainty over oil supplies, inflation and central bank policy. Falling crude prices have eased fears of another energy shock, but markets remain cautious as traders await more detail on the deal, the Bank of England’s next move and the wider impact on UK businesses.
The US Federal Reserve and Bank of England are expected to keep interest rates on hold this week as markets assess whether the US-Iran peace deal will ease energy-driven inflation. For businesses, the decision may bring short-term relief, but borrowing costs, wage pressure and fuel-linked price rises remain key risks.
