UK Prime Minister Keir Starmer announced his resignation on 22 June 2026, following sustained internal Labour Party pressure and declining public support, less than two years after Labour's substantial 2024 general election victory. Starmer confirmed he will remain as caretaker Prime Minister until a new Labour leader is selected. Bloomberg Markets and BBC Politics both reported the development, with BBC Politics noting Starmer had won a large majority in 2024 but reportedly failed to connect with the public. The resignation marks Britain's seventh prime minister in a decade, according to Bloomberg Markets.
Reported market movements on the day were mixed. The pound weakened against major currencies immediately following the announcement, according to Bloomberg Markets. However, Finnhub reported GBP subsequently strengthened against USD, while the FTSE 100 rose 0.50% in premarket trading and UK 10-year gilt yields fell 3.4 basis points.
GBPUSD, the sterling-dollar exchange rate, moved directly in response to the political uncertainty surrounding the resignation and succession. UK gilts, as the primary instrument of UK government borrowing, are directly connected to the bond market reassessment of fiscal policy continuity that Bloomberg Markets reported traders were undertaking following the announcement, with participants evaluating potential successors to Chancellor Rachel Reeves and their implications for the government's fiscal framework.
Scottish Labour leader Anas Sarwar issued a statement expressing pride in working with Starmer and stating he had "always had the best intentions," according to BBC Politics. No formal succession timetable had been confirmed at the time of reporting, though Bloomberg Markets identified Andy Burnham as a leading contender for the Labour leadership.
Sources: Bloomberg Markets, BBC Politics, Finnhub