Yen Extends Gains as U.S. Signals Readiness for Further Joint FX Intervention

The Japanese yen appreciated nearly 1% against the U.S. dollar on Monday, building on last week's sharp rally amid growing expectations of further coordinated intervention by Japanese and U.S. authorities to support the currency.

U.S. Officials Signal Support

The yen's move higher was bolstered by comments from U.S. Treasury Secretary Scott Bessent, who stated that the U.S. would not hesitate to participate in additional joint intervention if "disorderly moves" in the yen re-emerge. According to the report, U.S. President Donald Trump also backed the coordinated action, describing it as beneficial for the global economy.

This follows the first confirmed joint yen-buying intervention by Tokyo and Washington since 2011, which took place last week after the Japanese currency hit a 40-year low against the dollar. The action is aimed at curbing the yen's recent sharp depreciation.

Market Reaction

In response to the latest developments, the yen strengthened significantly. Key market movements include:

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• The USD/JPY pair traded 0.8% lower at 156.32.
• Earlier in the session, the pair had fallen to a low of 155.21.
• This extends a rally that saw the pair drop more than 3% in the prior two trading sessions.

Fundamental Drivers and Outlook

While intervention provides short-term support, analysts note that underlying economic fundamentals remain crucial for the yen's long-term trajectory. The Bank of Japan contributed to the currency's strength by maintaining a hawkish tone at its meeting on Friday, holding its key interest rate at 1% but signaling it was prepared to tighten policy further.

Analysts at MUFG said in a note that while the joint intervention is "historic and significant," a "more durable move lower in USD/JPY" would likely require a change in fundamentals. The bank anticipates the Bank of Japan will deliver rate hikes faster than the market currently expects, which would be a key factor in driving the currency pair lower over time.