Japan and the U.S. have announced a coordinated foreign-exchange policy involving a yen-buying intervention on the morning of Aug. 3 [1, 2].

This joint action marks the first coordinated intervention of this type in about 28 years [1]. It represents a significant escalation in efforts to curb the rapid depreciation of the yen, which has pressured the Japanese economy and shifted global currency dynamics.

Finance Minister Katayama and U.S. Treasury Secretary Bessent coordinated the move to stabilize the yen-dollar exchange rate [1, 2]. The intervention follows a period where the yen reached roughly 157 yen per dollar in early-morning trading [1].

During the intervention, the yen briefly rose to the 155-yen level [3]. However, the currency later settled around 159 to 160 yen per dollar [3]. The volatility highlights the difficulty of managing currency values through direct market intervention.

Katayama said, "必要に応じていつでも適切に対応する" (We will respond appropriately at any time as necessary) [4].

Reports on the nature of the intervention vary. Some sources state the Japanese government and Bank of Japan acted together with the U.S. in a coordinated buy [1]. Other reports suggest U.S. authorities conducted a "rate-check" and sold euros to buy yen, while direct intervention by Japanese authorities remained unconfirmed [3].

Deputy Finance Minister Mimura said that coordination between Japanese and U.S. currency authorities is in its most close state [5]. A government source also said that while the yen continued to weaken, the two nations reaffirmed their coordination regarding exchange interventions [6].

“First coordinated yen-buying intervention in about 28 years”

The decision to launch a coordinated intervention after nearly three decades suggests that unilateral action by the Bank of Japan was insufficient to stop the yen's slide. By aligning with the U.S. Treasury, Japan is attempting to signal a stronger global commitment to currency stability, though the subsequent drift of the yen toward 160 indicates that market forces may still outweigh government interventions.