Japan and the United States conducted coordinated currency intervention on July 31, 2026, to support the Japanese yen after it fell to its weakest level in approximately four decades. The operation involved purchases of yen by Japanese authorities and the United States Treasury.
The intervention followed months of depreciation that had pushed the yen close to 164 per United States dollar. A weaker yen increases the cost of imported goods for Japan, particularly energy and food, and can contribute to domestic inflation. Japan had previously intervened independently in currency markets but continued to face downward pressure on the yen.
The United States Treasury participated directly in the operation, marking the first coordinated U.S.-Japan currency intervention since 2011. U.S. Treasury Secretary Scott Bessent and Japanese Finance Minister Satsuki Katayama later confirmed the joint action and indicated that additional intervention remained possible if disorderly currency movements continued.
The intervention also reflected concerns about financial connections between Japanese currency markets, Japanese government bonds, and United States Treasury securities. Japanese authorities hold large foreign exchange reserves, including U.S. government debt, which can be used to obtain funds for currency intervention.
The joint operation temporarily strengthened the yen and increased expectations that the Bank of Japan could raise interest rates. The intervention demonstrated coordinated financial action between two major economies during a period of higher energy costs, inflation pressures, and volatility in global bond and currency markets.
