Key facts
- Japan's Finance Minister Satsuki Katayama will announce joint currency market action with Washington.
Japan's Finance Minister Satsuki Katayama is expected to announce joint currency market action with Washington to counter the yen's slide to 40-year lows. The intervention, aimed at boosting the Japanese currency, marks the first such joint action since 2011.

The coordinated intervention by Japan and the U.S. signals a strong commitment to stabilizing the yen, potentially impacting global currency markets and trade dynamics. It highlights concerns over rapid currency depreciation and its economic consequences.
Japan's Finance Minister Satsuki Katayama is set to announce on Monday that Tokyo and Washington have undertaken joint action in the currency market to halt the yen's significant decline. The yen has fallen to 40-year lows against the dollar, prompting this coordinated effort.
Sources familiar with the matter indicated that Katayama would emphasize the determination of both nations to combat what they perceive as excessive depreciation of the Japanese currency. This move represents the first instance of joint intervention by Japan and the U.S. since 2011.
Market participants reported rounds of yen-buying by Japanese and U.S. authorities, seeking to bolster the currency from its lowest levels against the dollar since 1986. A market source confirmed that Japan conducted yen-buying and dollar-selling intervention during New York trading hours on Thursday.
This action preceded the Bank of Japan's decision on Friday to maintain its current monetary policy while signaling a strong likelihood of an imminent interest rate increase. U.S. Treasury Secretary Scott Bessent had previously commented that the yen appeared "very undervalued" and was seen with a notepad indicating a potential "Buy Japanese Yen (JPY) $5-10 bil" at a cabinet meeting.
Furthermore, the U.S. Treasury had informed several banks on Friday about the possibility of intervention in the yen market, instructing them to be prepared for future actions.