The United States intervened by purchasing Japanese yen, a move confirmed by President Donald Trump as a "signal of friendship" and an effort to prop up the yen from its 40-year low against the dollar. This rare bilateral intervention, first reported by the Financial Times, involved the Federal Reserve Bank of New York selling euros for yen on behalf of the Treasury Department. Japan's Finance Minister Satsuki Katayama stated that this action countered "excessive volatility and disorderly movements in the Japanese yen in recent months," with U.S. Treasury Secretary Scott Bessent also confirming the intervention and stating the Treasury Department "will not hesitate" to take further action.
Analysts view this coordinated effort as a demonstration of both countries' commitment to preventing a sell-off in the yen and Japanese government bonds (JGBs) from creating global repercussions. A key concern was the potential for upward pressure on already rising U.S. Treasury yields, with yields on the U.S. 10-year Treasury having gained almost 57 points since the start of the year. The intervention also aims to avoid a scenario where Japan, the largest foreign holder of U.S. government debt, would need to sell large quantities of Treasuries to fund unilateral interventions. Japan's finance ministry announced its intention to use the Federal Reserve's FIMA repo facility for future interventions, a mechanism that allows foreign central banks to obtain dollar liquidity without directly selling Treasuries.
The strategic importance of this intervention extends beyond immediate currency stabilization. Oxford Economics' Louise Loo suggested that Washington's participation was partly for "self-preservation," as volatile markets driven by Japanese fiscal policies could destabilize U.S. Treasury markets and the dollar. The intervention also provides time for the Bank of Japan until it can resume raising interest rates later in the year, which is seen as a more fundamental solution to a stronger yen. While some analysts, like Robin Brooks of the Brookings Institution, questioned the mechanics, the announcement effect of this joint intervention is considered significantly larger than any solo action by Japan. Before Friday's confirmed joint intervention, Bank of Japan data suggested Japan may have sold as much as $58.97 billion to buy yen during its Thursday intervention in New York markets.
