Pound Strength May Be Short-Lived as Central Banks Hike Interest Rates

The British pound has been an unlikely star among its peers in the G10 group of wealthy nations, outperforming many others this year. Despite the resignation of Prime Minister Keir Starmer on July 20 and a change in government, sterling has gained around 1.6% against the euro year-to-date, adding 2.8% against the Swiss franc, 4.9% against the Swedish krona, and 1% against the Canadian dollar.

The pound's strength can be attributed to an unexpectedly resilient U.K. economy, with gross domestic product growing by 0.4% in the second quarter, following a 0.6% expansion in the first quarter. This growth was driven by sunny weather and excitement around the FIFA World Cup, which boosted consumer spending, while business activity remained surprisingly resilient despite the volatile geopolitical backdrop.

However, the pound's recent weakness could be set to deepen, as central bank rate hikes typically boost their home currency. The European Central Bank is expected to hike interest rates on Wednesday, and there are high expectations for a similar move by the Federal Reserve later this month. In contrast, the Bank of England has held its key interest rate at 3.75% throughout this year, with low odds of a rate hike at its September meeting.

Economists are cautioning that any dovish messaging from the BOE could further expose the pound's weakness, particularly just before markets get anxious for the first annual budget announcement of Burnham's administration on October 28. New U.K. Finance Minister John Healey has emphasized his commitment to fiscal discipline, while targeting a more even distribution of economic growth around the country.