U.S., Japan confirm coordinated yen intervention, signal readiness for more - CNBC

Japan's Finance Ministry confirmed on Monday that it carried out a coordinated yen-buying intervention with the U.S. Treasury on Friday, a rare joint currency action by the two allies aimed at curbing sharp swings in the yen.
Tokyo signaled it stands ready to act again, stating it "will not hesitate to conduct further coordinated interventions," with Finance Minister Satsuki Katayama emphasizing continued close communication with the U.S. Treasury.
The yen had weakened to 163.73 against the dollar last Thursday before strengthening to 157.57 on Friday; it traded around 157.70 per dollar on Monday, after recently touching its lowest level in roughly four decades.
The intervention was conducted under the "Joint Statement of the Japanese and U.S. Finance Ministers" issued in September 2025, addressing what officials described as excessive volatility and disorderly movements in the currency.
Japan also said it plans to use the Federal Reserve's FIMA repo facility, which lets approved foreign central banks obtain short-term dollars by temporarily exchanging U.S. Treasury securities.
U.S. Treasury Secretary Scott Bessent confirmed the action, saying the coordinated move "countered disorderly yen movements" and endorsing Japan's steps to correct what he called the yen's substantial undervaluation; President Donald Trump had earlier said the U.S. took part in the intervention.