US Treasury Secretary Scott Bessent stood before an audience at Southern Methodist University on September 9 and delivered the kind of line that usually gets a person investigated, promoted, or both: “I am the house now.”
The target of his bravado? Currency traders shorting the Japanese yen. His weapon of choice? What he described as “pretty good insight into what the Japanese, what the Bank of Japan is going to do.”
The intervention that changed the game
Bessent’s swagger didn’t materialize from thin air. It rests on a concrete and historic policy action: the first coordinated US-Japan yen-buying operation in nearly three decades, executed on July 31, 2026.
During that operation, the US sold euros through Goldman Sachs and Morgan Stanley to purchase yen. The last time Washington actively intervened alongside Tokyo in currency markets was 1998, during the Asian financial crisis.
