The US Treasury intervened in currency markets to support Japan's yen on July 31, marking the first such action since 2011. Treasury Secretary Scott Bessent said the yen was very undervalued, according to reporting of his remarks.
The intervention occurred through the Federal Reserve Bank of New York, which sold euros for yen using Goldman Sachs and Morgan Stanley as counterparties. The specific size of the operation was not disclosed. The move came after Japan's own currency stabilization efforts and occurred as USD-JPY exchange rates had moved beyond economic fundamentals.
Currency interventions by major economies have become rare events. The prior US intervention in the yen occurred on August 4, 2011, when the Federal Reserve coordinated action with other central banks to counteract volatility in Japanese markets following the Fukushima earthquake and tsunami. That 2011 intervention was one of the first coordinated multilateral actions of the 2008-2012 financial crisis cycle.
Bessent said the yen was very undervalued. The statement appeared designed to indicate forward intentions rather than describe a one-time technical correction. Currency valuations have been a recurrent friction point between Washington and Tokyo, particularly as Japanese policymakers have considered potential shifts in monetary policy stance.
The Treasury's decision to act unilaterally rather than through formal coordination with other G7 central banks marked a departure from post-crisis intervention protocols, where multilateral action has been the norm. No announcement from the Treasury or Federal Reserve preceded or immediately followed the market operation, making market participants reliant on Bessent's public statements for official justification.
The absence of a formal Treasury announcement means the size, duration and technical specifications of the intervention remain unknown to markets. This opacity has historically characterized US currency operations, which are announced only after the fact or not at all when scale warrants discretion.
The rarity of Treasury yen interventions, a 15-year gap, means trading desks and allocators have limited recent precedent for interpreting the operation. The last intervention occurred in a deflationary crisis; this one occurs during a period of relative policy divergence between US and Japanese monetary authorities, making the underlying economic diagnosis material to how markets price forward exchange rates.
