Overview
- Brief, sharp yen jumps in recent sessions led traders to suspect small, deterrent operations designed to scare off fresh dollar bets.
- Japan’s finance chief said the United States is in close coordination and fully supports Tokyo’s efforts, and the U.S. Treasury chief echoed that message online.
- Market tallies based on Bank of Japan accounts suggest roughly ¥10 trillion was spent supporting the yen across late April and early May, though officials have not confirmed the smaller moves.
- Analysts say interventions can slow the slide but lasting support is hard with Japan’s low rates and higher oil prices putting pressure on the currency.
- Tokyo treats about ¥160 per dollar as a red line because a weaker yen raises the price of imported fuel and food for households, and U.S. officials worry large defenses could force sales of Treasuries that might push U.S. borrowing costs higher.