Japan and US Joint Yen Intervention Sets Record Spending and Market Impact

yen intervention US‑Japan joint action record 6.28 trillion yen spend Scott Bessent Toyota Nissan yen outlook

In late July and early August 2026 the United States and Japan carried out a coordinated currency intervention, the first joint yen‑buying operation since 1998. Japan’s Ministry of Finance and the Bank of Japan spent a record 6.28 trillion yen (about $40 billion) on 30 April, and the combined July‑August actions are estimated to have involved roughly 5.3 trillion yen from Japan and additional U.S. funds, bringing total public‑sector outlays to near $59 billion.

The yen had been sliding toward a 40‑year low of around ¥164 per dollar before the intervention, briefly rebounded to about ¥155 after the joint action, then resumed its decline. U.S. Treasury official Scott Bessent announced that the United States would sell euros to fund its yen purchases, a step that the European Central Bank learned of only after the trade was executed. Analysts described the move as a rare "weaponisation" of foreign‑exchange policy.

Japanese automakers Toyota Motor Corp. and Nissan Motor Co. have incorporated the intervention into their outlooks, expecting the yen to stay in the ¥150‑¥160 per dollar range for the fiscal year through March 2027. The intervention aims to curb import‑price inflation and support the Japanese economy, but it also raises concerns about fiscal strain and market volatility.

Entities: Bank of Japan · European Central Bank · GBP/JPY currency pair · Japan · Japan · Japan Ministry of Finance · Japanese yen · Nissan Motor Co. · Scott Bessent · Toyota Motor Corp. · Toyota Motor Corporation · U.S. dollar

Claims

What the coverage asserts, and how well corroborated each claim is across sources.

[● 3 SOURCES] The United States and Japan executed a joint currency intervention in August 2026 to support the yen. (multiple sources)
[○ 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. (multiple sources)
[○ 1 SOURCE] The United States sold euros to fund its yen purchases, a step not communicated to the European Central Bank before execution. (multiple sources)
[● 2 SOURCES] The yen was trading around ¥150‑¥160 per dollar after the intervention. (multiple sources)
[○ 1 SOURCE] The intervention involved roughly 5.3 trillion yen (about $34 billion) from Japan and additional US funds, totaling about $59 billion. (multiple sources)
[○ 1 SOURCE] Japan spent a record 6.28 trillion yen in a single‑day forex intervention on April 30, 2026. (multiple sources)
[● 2 SOURCES] The joint intervention was the first of its kind since 1998. (multiple sources)
[○ 1 SOURCE] Analysts described the intervention as a “weaponisation” of the yen, indicating a geopolitical use of foreign‑exchange policy. (multiple sources)
[○ 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. (4d8d60ef-d3a5-40fc-9d92-0b8931daca1e)
[○ 1 SOURCE] The last joint US‑Japan yen‑buying operation before this was in 1998. (historical precedent)
[○ 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. (joint intervention scale)
[○ 1 SOURCE] Japan spent a record 6.28 trillion yen in a single‑day forex intervention on 30 July 2026. (record yen intervention)