Japan and the U.S. conducted a joint currency intervention on July 31 to buy yen and curb excessive market volatility [1, 2].
This coordinated action marks the first time in approximately 28 years that the two nations have collaborated on such an intervention, a move not seen since 1998 [4]. The decision signals a high level of urgency between Tokyo and Washington to stabilize the foreign exchange market against disorderly fluctuations.
Following the intervention, the yen surged. Some reports indicate the currency climbed to approximately 155 yen per U.S. dollar [1], while other data from the New York market cited a peak of 157.20 yen per dollar [2].
Finance Minister Katayama said the measures were necessary to address "excessive fluctuations" and "disorderly movements" in the exchange rate [1, 4]. He said that the Japanese Ministry of Finance and U.S. authorities would take decisive action against such instability [1].
Regarding the timing, some reports state the intervention occurred on July 31 based on U.S. Eastern Time [1, 2]. However, other reports suggest the Japanese government and the Bank of Japan initiated moves on July 30 and continued into the following day [2].
Katayama said the government remains vigilant. He said the authorities would not hesitate to implement further coordinated interventions if market conditions require it [4].
“Japan and the U.S. conducted a joint currency intervention on July 31 to buy yen”
The return to coordinated intervention between the U.S. and Japan suggests that unilateral action by the Bank of Japan was insufficient to stabilize the yen. By aligning with Washington, Tokyo is attempting to create a stronger psychological deterrent for speculators, signaling that the two largest economies are committed to preventing a currency collapse that could destabilize global trade.
