Sterling led the major currencies on Monday, rising 0.3% against the Japanese yen, up 0.14% versus the euro and edging 0.05% higher against the dollar after reversing earlier losses. The move followed Sir Keir Starmer’s announcement that he will step down as UK Prime Minister and Leader of the Labour Party, while remaining in office until a successor is chosen and pledging support for the incoming leader.
The resignation came after weeks of pressure inside Labour, including calls for him to leave and a continuing stream of cabinet resignations. Andy Burnham, the Mayor of Manchester, strengthened his position in the succession by winning a parliamentary seat in a Makerfield by-election, sharpening expectations that a change at the top was imminent. Markets treated the announcement as largely anticipated, with attention turning to fiscal policy continuity, including Burnham’s stated intention to adhere to fiscal rules and to operate within Chancellor of the Exchequer Rachel Reeves’ framework, even as he backs bringing water and transport services under public control.
Market Reaction To Reduced Political Paralysis
We are seeing the pound strengthen as the market digests the end of a period of political paralysis. This isn’t a vote of confidence in a new leader yet, but rather relief that the deadlock is over. Data from the CFTC shows speculative net-long positions on sterling had already been reduced over the last month, so this resignation clears the way for a potential rebound.
Policy Risk And Market Volatility Ahead
The main takeaway for us is the shift in risk from political gridlock to policy uncertainty. One-month implied volatility on GBP/USD options has jumped to 9.5% from a low of 7% last month, reflecting the market’s need to price in a range of outcomes under a new prime minister. We should expect this elevated volatility to remain as the leadership transition unfolds.
The memory of the gilt market crisis following the 2022 mini-budget is fresh in everyone’s mind, making fiscal discipline the only thing that matters right now. This historical precedent explains why the market is so sensitive to any hint of unfunded spending commitments. So far, the likely successor, Andy Burnham, has said the right things to avoid a similar panic.
His commitment to Chancellor Rachel Reeves’ existing fiscal rules is the key reason Sterling has held its ground. A recent statement from Moody’s on Monday noted the reduced near-term political uncertainty but kept the UK’s outlook as stable, pending details from the new administration. This gives the market some breathing room, but it will not last for long.
Given the UK’s latest CPI inflation reading is still sticky at 2.8%, any fiscal loosening could force the Bank of England’s hand. Therefore, we believe a prudent strategy for the next few weeks is to own pound volatility through options. This allows us to profit from any sharp moves, whether it’s a continued relief rally or a sudden downturn if Burnham’s policy details spook investors.
