Japan's top FX official Mimura warned again on the weak yen, pushing the The currency is about 0.4% higher to 156.51 per dollar, its strongest since Sept. 18. Mimura said the prime minister, finance minister and US counterparts had given "very clear"

2026-09-28

Japan's top FX official Mimura warned again on the weak yen, pushing the The currency is about 0.4% higher to 156.51 per dollar, its strongest since Sept. 18. Mimura said the prime minister, finance minister and US counterparts had given "very clear" signals on yen depreciation. Prime Minister Takaichi said US President Trump voiced concern about the weak yen at a recent meeting. Finance Minister Katayama spoke by phone with the US treasury secretary on Friday evening; both reiterated that the yen is undervalued and agreed to deepen US-Japan cooperation. Nomura FX strategist Yusuke Miyairi said the comments should raise market tension over possible Ministry of Finance intervention, and that Mimura—who had previously signaled silence to sustain concern over intervention risk—has begun verbal intervention since last Friday.