Pound Sterling Gains as Dollar Weakens on Suspected Yen Intervention

The British pound advanced against a broadly weaker U.S. dollar on Thursday, a move largely attributed to speculation of currency intervention by Japanese authorities that pressured the greenback across the board.

As of 5:05 AM ET, the GBP/USD pair was up 0.09% to 1.3499, according to Investing.com data. The euro also gained, with EUR/USD rising 0.18% to 1.1609, as the dollar's momentum faltered.

Dollar Pressured by Yen Volatility

The dollar's decline was triggered by a sharp overnight fall against the Japanese yen, which analysts suggest reignited market speculation that Japanese authorities may be intervening to support their currency. Chris Turner, Global Head of Markets at ING, noted that the dollar's nearly 1% intraday drop against the yen revived discussions about intervention, following reports that Japan sold approximately $96 billion between late July and early August to prop up the yen.

This external pressure on the dollar contributed to a slight cooling of expectations for a September rate hike from the U.S. Federal Reserve. Market pricing for a hike eased from 18 basis points to 15 basis points. However, strategists at ING believe this shift is more closely linked to slowing oil price gains than a fundamental change in the market's outlook. "The bar for the Fed to abandon a September hike is quite high, especially for secondary data," said Francesco Pesole, an FX strategist at ING.

Sterling's Rise Lacks Domestic Drivers

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Analysts emphasized that the pound's rally was not driven by positive developments in the U.K. economy. The move was described as almost entirely a consequence of the broad dollar weakness stemming from the yen's sharp move.

There were no significant economic data releases or comments from Bank of England officials on Thursday to act as a domestic catalyst for sterling. According to Pesole, currencies with strong domestic fundamentals, such as the Australian and Canadian dollars, were better able to hold their gains, while others saw their rallies fade.

Broader Market Outlook

Looking ahead, ING maintains a preference for dollar strength, citing support from higher short-term interest rates and elevated energy prices. The primary risk to this view would be a rise in long-term U.S. yields that could prompt Treasury intervention.

In the Eurozone, ING's macro team suggests that markets may have priced in an overly hawkish stance from the European Central Bank (ECB) ahead of its meeting next week. Pesole noted that policymakers' concerns about widening European bond spreads might outweigh inflation risks, potentially leading to a more dovish signal than investors anticipate. ING sees downside risks for EUR/USD, forecasting a return to the 1.150-1.155 range.