Washington Joins Tokyo in Rare Yen Intervention; Gold Gains on Currency Uncertainty

In an unexpected echo of the 1990s, the U.S. Treasury on July 31st directed the New York Fed to sell euros and purchase Japanese yen, marking the first outright yen-buying intervention by the United States since 1998. Tokyo’s Ministry of Finance had already entered the market earlier that day, and Washington’s involvement turned the move into a full joint operation. Traders responded immediately: the dollar fell from a 40-year high near ¥164 on July 23rd to ¥157.57 by Friday’s close, while the broad dollar index slipped below the psychologically significant level of 100. The coordinated action reflects how concerned policymakers have become about extreme currency swings, and how willing they remain to intervene directly in currency markets.

According to sources, the U.S. trades were executed through Goldman Sachs and Morgan Stanley, adding an estimated $5 billion to $10 billion to Japan’s own ¥8.45 trillion ($52.8 billion) effort. Treasury Secretary Scott Bessent wrote on X that the two countries “continue to enjoy a strong relationship and close co-ordination” and that the United States stepped in to counter “disorderly” moves and support Japan’s “decisive market and monetary steps to correct substantial undervaluation of the yen.” Japan’s Finance Minister Satsuki Katayama echoed the sentiment, stating that authorities “will not hesitate to conduct further joint intervention if necessary in close coordination with the U.S.” That statement, together with a New York Fed “rate check” the previous day, indicated that officials are prepared to act again.

Policy rates, however, remain unchanged. The Bank of Japan held its benchmark rate at 1.00 percent on Friday, even as derivatives markets raised the odds of a September hike to 40 percent. Governor Kazuo Ueda said that “underlying inflation is approaching our 2 percent price stability target” and noted “upside risks to inflation,” but did not signal an imminent move. The situation reflects a persistent tension: while currency intervention can address acute volatility, the rate differentials between the Federal Reserve and the Bank of Japan continue to favor a weaker yen over time. Some hedge funds have already begun rebuilding short-yen positions with targets near ¥162, a sign that many investors expect underlying rate dynamics, rather than intervention, to determine the currency’s direction.

History offers little encouragement for the intervention’s supporters. The last joint U.S.-Japan yen-buying operation took place on June 17th, 1998, and within months the dollar had regained most of its losses. The only other instance of U.S. involvement, the 2011 G7 intervention aimed at weakening the yen after the earthquake, provided only temporary relief. For investors wary of such managed markets, hard assets again drew interest. On Monday, spot gold moved nearly $34 intraday and reached a $4,064 per ounce. The metal’s quick advance suggests that when governments intervene more heavily in currency markets, at least some capital continues to prefer the certainty of a 4,000-year-old store of value rather than promises of “decisive” policy.