U.S. Treasury Secretary Scott Bessent, in a letter to Senator Elizabeth Warren on Aug. 27, defended last month’s use of the Exchange Stabilization Fund (ESF) to intervene in the yen. He warned disorderly yen swings could force Japan — a major holder

2026-08-29

U.S. Treasury Secretary Scott Bessent, in a letter to Senator Elizabeth Warren on Aug. 27, defended last month’s use of the Exchange Stabilization Fund (ESF) to intervene in the yen. He warned disorderly yen swings could force Japan — a major holder of U.S. Treasures — into forced selling, destabilize global markets and ultimately push up borrowing costs for U.S. households and firms. Bessent declined to disclose the size of the intervention, confirmed the ESF used existing foreign-currency assets to buy yen and said officials had considered using euros. He said the action was lawful and that the U.S. provided no credit to Japan. Japan spent a record $96.4 billion last month defending the yen.