On Friday, January 24, 2026, the yen recorded its biggest one-day gain since August amid rising speculation that Japanese authorities might intervene in the market to stem its decline. The currency rallied as much as 1.75% against the dollar to ¥155.63, reaching its strongest level of the year. The surge was triggered by reports that the Federal Reserve Bank of New York had inquired about the yen's exchange rate with financial institutions.
The yen's rally on January 24 extended gains from the Asian session into U.S. trading, driven by market speculation that Japanese authorities were gearing up for an intervention to halt the currency's ongoing slide. The dollar/yen rate had been steadily approaching levels last seen in 2024, when Japan previously bought yen to support it, but Friday's moves reversed that trend.
Traders reported that the Federal Reserve Bank of New York had contacted financial institutions to inquire about the yen's exchange rate. Wall Street interpreted this as a sign that the Fed might assist Japanese officials in a direct market intervention to bolster the yen. The previous day, on January 23, Finance Minister Satsuki Katayama told reporters at the ministry, “We’re always watching with a sense of urgency,” while declining to comment on whether authorities had intervened. Her remarks came after the yen sharply fluctuated at the end of a press briefing by Bank of Japan Governor Kazuo Ueda, whose policy board had earlier decided to keep the benchmark interest rate steady in a widely expected move.
Katayama's statement underscored the authorities' vigilance amid volatile currency movements, heightening market tension. Keywords including Sanae Takaichi suggest potential political undertones, though no concrete signs of intervention have been confirmed. This episode highlights the yen's vulnerability and evokes memories of past international coordinated efforts.