Japan’s Finance Minister Satsuki Katayama said the country remained ready to act against disorderly currency moves under a framework used for a coordinated yen purchase in July, FXStreet reported.
FXStreet also reported that Katayama declined to comment on specific exchange-rate levels. Its market snapshot listed USD/JPY at 157.80 yen per U.S. dollar, up 0.14% on the day.
Japan’s Ministry of Finance and the U.S. Treasury issued their joint statement on Sept. 11, 2025. It says exchange rates should be market determined and intervention reserved for excessive volatility and disorderly movements, whether a currency is appreciating or depreciating.
The ministry said Japan purchased yen in coordination with the U.S. Treasury on July 31, 2026, U.S. Eastern Time. In an Aug. 3 statement, Katayama said the purchase was made under the joint statement and that Japan would not hesitate to conduct further joint intervention. The ministry did not disclose the amount.
The joint statement also sets out regular economic and currency consultations and requires public disclosure of intervention at least monthly.
