US Treasury Steps In to Support Yen Amid Currency Market Turmoil

The United States joined Japan in an unprecedented currency intervention to support the yen, signaling growing concerns over its weakness and trade competitiveness.

This coordinated effort was a departure from Japan's historical practice of intervening to keep the yen from becoming too strong. In fact, it marked only the second time the US had joined hands with Japan for a currency intervention, with the last instance being 15 years ago in 2011.

The move was sparked by the yen's steady decline to new lows, making it cheaper for Americans to compete with foreign products. The US Treasury argued that when foreign currencies are weak, their products become too cheap for America to compete with.

The intervention sent a strong signal to traders, making bets against the yen suddenly go wrong and adding uncertainty to the market. Japan's decision to buy up the yen outside its normal trading hours initially pushed the dollar-yen exchange rate down from ¥164 to ¥158 in one session.