US and Japan Launch Historic Joint Yen Intervention to Stabilize Currency

US‑Japan yen intervention record yen‑buying operation Euro sale by US Treasury Japanese automakers yen outlook ECB notified after trade

In late July and early August 2026 the United States and Japan carried out a coordinated foreign‑exchange intervention, the first joint yen‑buying operation since 1998. Japan’s finance ministry and the Bank of Japan bought roughly 5.3 trillion yen (about $34 billion) and the U.S. Treasury added further funds, bringing the total value of the operation to around $59 billion. The U.S. funded its share by selling euros from its reserves, a step that was not communicated to the European Central Bank until after the trade was executed. The intervention halted a slide that had seen the yen near ¥164 per dollar, a 40‑year low, and pushed the rate down to about ¥155 per dollar before the currency resumed its broader downtrend. Japanese automakers Toyota and Nissan have adjusted their outlooks, expecting the yen to remain in the ¥150‑¥160 range for the fiscal year through March 2027. The record‑size April 30 intervention, in which Japan spent a single‑day 6.28 trillion yen, underscored the authorities’ willingness to act aggressively. The move has drawn attention from other Asian markets, with U.S. Treasury officials noting possible spill‑over effects on the South Korean won. The European Central Bank’s late notification has raised questions about coordination among major central banks for future interventions.

Entities

Bank of Japan · European Central Bank · GBP/JPY currency pair · Japan · Japan · Japan Finance Ministry · Japan Ministry of Finance · Japanese yen · Nissan Motor Co · Nissan Motor Co. · Scott Bessent · Toyota Motor Corp

Claims

What the coverage asserts, and how many sources carry each claim.

[● 3 SOURCES] The European Central Bank was informed of the U.S. euro‑selling component only after the trade had been executed. www.archyworldys.com · cafebiz.vn · investinglive.com
[○ 1 SOURCE] Japanese carmakers such as Toyota and Nissan expect the yen to remain in the ¥150‑¥160 range for the fiscal year through March 2027. www.japantimes.co.jp
[● 2 SOURCES] The United States Treasury sold euros to fund its yen purchases, without informing the European Central Bank in advance. investinglive.com · www.japantimes.co.jp
[● 2 SOURCES] The yen was trading around ¥150‑¥160 per dollar after the intervention. www.japantimes.co.jp · cryptobriefing.com
[● 3 SOURCES] The joint intervention involved roughly 5.3 trillion yen (about $34 billion) from Japan and total estimates near $59 billion. www.archyworldys.com · www.japantimes.co.jp · bizrapidx.com
[● 3 SOURCES] Japan spent a record 6.28 trillion yen in a single‑day forex intervention on April 30, 2026. cryptobriefing.com · www.adnkronos.com · www.elbalad.news
[● 2 SOURCES] The joint intervention was the first of its kind since 1998. www.archyworldys.com · cafebiz.vn
[○ 1 SOURCE] Analysts described the intervention as a “weaponisation” of the yen, indicating a geopolitical use of foreign‑exchange policy. cafebiz.vn
[○ 1 SOURCE] Toyota Motor Corp. and Nissan Motor Co. expect the yen to trade between ¥150 and ¥160 per dollar for the fiscal year through March 2027. www.japantimes.co.jp
[○ 1 SOURCE] The last joint US‑Japan yen‑buying operation before this was in 1998. www.archyworldys.com
[○ 1 SOURCE] The joint US‑Japan currency intervention in August 2026 deployed roughly 5.3 trillion yen (about $34 billion) from Japan and total estimates near $59 billion. www.archyworldys.com
[○ 1 SOURCE] Japan spent a record 6.28 trillion yen in a single‑day forex intervention on 30 July 2026. cryptobriefing.com