Japan’s top currency official, Atsushi Mimura, has signaled that Tokyo’s recent yen-buying intervention was effective and that the U.S. has not opposed the action, even offering supportive comments. Speaking as the yen hovered near a 40-year low around 162.70 per dollar, Mimura emphasized his frequent, behind-the-scenes contact with Washington, saying he communicates with his U.S. counterpart “far more frequently than most people probably imagine.” His remarks suggest that Japan still views intervention as a viable tool and that the U.S. remains broadly aligned with Tokyo’s FX policy, despite market speculation about a widening interest-rate gap.
The yen’s persistent weakness stems from growing expectations that the Federal Reserve may raise rates again, widening the U.S.-Japan rate differential. Mimura downplayed the likelihood of multiple U.S. rate hikes, but the currency’s slide threatens to amplify inflation in Japan, eroding household spending power while boosting exporters. Confidence among large manufacturers hit its highest since 2018, yet inflation expectations among firms also rose to record levels, squeezing domestic-oriented businesses.
Mimura’s comments come as market participants remain wary of further intervention, with some eyeing the 164-165 per dollar range as the next trigger. Japan spent a record ¥11.73 trillion in May to prop up the yen, but those gains have been fully retraced, presenting a dilemma: each new intervention may be less powerful and more costly. The FX chief’s reference to close U.S. coordination adds a layer of uncertainty for speculators, especially after the Treasury had the New York Fed check the yen rate in January, spooking markets without actual intervention.
Prime Minister Sanae Takaichi’s efforts to placate consumers with fuel subsidies and a proposed sales tax cut have risks, including driving up bond yields. Mimura pushed back against concerns over Japan’s fiscal sustainability, noting that IMF reports have recently viewed the country’s fiscal position more favorably. With the yen at multi-decade lows and U.S. labor data due, Tokyo may have a window to act again, but Mimura’s reticence to spell out the standard “bold action” stance suggests authorities may let the currency fall further to retain an element of surprise.
What to watch next: Whether U.S. labor data on Thursday triggers another yen slide and whether Tokyo steps in near the 164-165 per dollar threshold, potentially with tacit U.S. support.
Key Takeaways
- Japan’s FX chief confirmed recent intervention was effective and that the U.S. has not opposed it, signaling continued alignment.
- The yen’s slide to a 40-year low near 162.70 per dollar is driven by expectations of a widening U.S.-Japan rate gap.
- Record intervention spending of ¥11.73 trillion in May has been fully reversed, raising doubts about the long-term power of such moves.
- Close U.S.-Japan coordination, including a past Fed check on the yen rate, adds a fear factor for speculators and may bolster future intervention.
Insights & Analysis
- Japan’s strategy appears to be using the threat of coordinated U.S. action as a force multiplier, making verbal warnings more potent than actual intervention.
- The yen’s weakness is increasingly a political liability for Prime Minister Takaichi, as inflation from imports erodes household spending power ahead of potential elections.