On Friday 31st, July (U.S. Eastern Time), Japan's Ministry of Finance purchased the Japanese yen in coordination with the U.S. Department of the Treasury.
This joint action was taken pursuant to the U.S.-Japan Finance Ministers' Joint Statement issued in September 2025 and countered excessive volatility and disorderly movements in the Japanese yen in recent months.
The Japanese Ministry of Finance remains attentive and in close communication with our counterparts at the U.S. Treasury. We will not hesitate to conduct further joint intervention.
Japan also plans to utilize the Federal Reserve's Foreign and International Monetary Authorities (FIMA) Repo Facility in the future.
【速報】日米協調介入実施の報道、ベッセント財務長官のやることリストに「日本円を50〜100億ドル買う」
・米財務省が31日に円買い介入実施、NY連銀がGS・MS通じユーロ売り円買い
・ベッセント氏のメモ帳に「Buy Japanese Yen $5-10 bil.」と記載
・公開取材中に撮影された写真から発覚、財務省はコメントせず
・ドル円は8月1日早朝に157.6円まで下落し続けた、もし米の介入なら東日本大震災以来
ドル円が今年中に165円を超える確率71%に下落