Sterling Hits Multi-Week High on Mounting Bank of England Rate Hike Bets

The British pound strengthened to its highest point since August 29 on Thursday, propelled by growing market expectations for further monetary tightening from the Bank of England. Sterling rose despite a complex backdrop of surging oil prices and heightened geopolitical tensions in the Middle East.

By early European trading, the GBP/USD currency pair was up 0.07% at 1.3554, according to data from Investing.com.

Rate Expectations Drive Gains

The primary driver for sterling's recent strength is a shift in investor outlook on the Bank of England's (BoE) policy path. While a rate hike is not expected at the central bank's next meeting, money markets are now pricing in a more aggressive stance in the coming months.

Market-implied probabilities suggest:

• At least two rate hikes by March of next year.
• A roughly 40% probability of a third rate increase within the same period.

This outlook is notably more hawkish than expectations for the U.S. Federal Reserve, where investors currently anticipate just two rate hikes over the same timeframe. These bets on the BoE have been reinforced by recent data showing UK consumer price inflation accelerated to 2.9% in July from 2.6% the prior month.

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Economic Headwinds and Official Caution

Sterling's ascent comes amid significant economic risks. Brent crude oil surpassed $100 a barrel for the first time since July, adding inflationary pressure to a UK economy that is heavily reliant on energy imports.

In response to the market's increasingly aggressive bets, BoE officials have sought to manage expectations. Governor Andrew Bailey recently stressed that further monetary tightening is not guaranteed, highlighting the uncertainty posed by elevated energy prices and fiscal risks leading up to the autumn Budget.

Broader Currency Market Moves

The U.S. dollar has shown persistent weakness, a trend that continued for most of Wednesday, according to ING FX strategist Francesco Pesole. A U.S. Treasury announcement of a $6 billion long-term bond buyback—below market rumors of around $10 billion—offered some potential support for the dollar.

Investors are now closely watching U.S. producer price data due Thursday, followed by the consumer price index on Friday, for clues ahead of the Federal Reserve's meeting next week. Pesole noted that unless inflation delivers significant downside surprises, the conditions could allow the Dollar Index (DXY) to return to the 99.0 level.