US and Japan launch coordinated yen intervention to stabilize currency

yen intervention currency exchange US-Japan alliance carry trade US Treasuries

The United States and Japan conducted a major coordinated foreign exchange intervention in late July 2026 to stabilize the Japanese yen, which had reached a 40-year low against the dollar. While Japan spent over $36 billion to support its currency, the U.S. Treasury contributed between $5 billion and $10 billion, notably using euros to purchase yen. This mark's the first such joint operation between the two nations since 1998.

A unique mechanism was employed to avoid forcing Japan to sell its massive holdings of U.S. Treasuries—estimated at over $1 trillion—to fund yen purchases. Instead, the Federal Reserve provided dollars to Japan through repo agreements, where the Fed received temporary ownership of Treasury securities. This approach aimed to prevent a spike in U.S. interest rates that would have resulted from a massive sell-off of government debt.

The intervention saw the yen appreciate approximately 5% within a few days, moving from 164 to roughly 155 per dollar, though the dollar subsequently regained some ground. However, some experts and institutions, including BlackRock, have expressed concerns. Critics noted that the move was uncoordinated with the European Central Bank, which was notified only after the operation was complete, and warned that such interventions may not address underlying structural issues like interest rate differentials or the risks associated with the unwinding of the yen carry trade.

Entities

Bank of Japan · European Central Bank · Federal Reserve · Federal Reserve · Japan · Japanese yen · Ministry of Finance of Japan · Scott Bessent · U.S. Department of the Treasury · U.S. Treasury · United States · United States Department of the Treasury

Claims

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

[● 2 SOURCES] The yen rose approximately 5% over three trading days following the intervention news. www.chinesepress.com · www.italiaunita150.it
[● 2 SOURCES] Japan spent more than $36 billion to support the yen. www.upday.com · www.guineetime.com
[● 3 SOURCES] The intervention aims to prevent Japan from selling its $1 trillion+ in U.S. Treasury holdings to fund yen purchases. nemosnewsnetwork.com · jungefreiheit.de · www.guineetime.com
[● 2 SOURCES] ECB President Christine Lagarde was notified of the intervention after the operation was completed. www.upday.com · kaigai.ch
[● 4 SOURCES] The U.S. Treasury purchased between $5 billion and $10 billion worth of yen. www.upday.com · www.chinesepress.com · www.guineetime.com · finans.dk
[● 2 SOURCES] Scott Bessent confirmed the coordinated foreign exchange actions on X. nemosnewsnetwork.com · finans.dk
[● 3 SOURCES] The Federal Reserve lent dollars to Japan in exchange for temporary ownership of Treasury securities through repo agreements. www.upday.com · nemosnewsnetwork.com · www.koreatimes.co.kr
[○ 1 SOURCE] BlackRock warned that the uncoordinated move adds to geopolitical risks and reduces the appeal of long-term government bonds. www.upday.com