The Japanese yen fell to approximately 163.90 per U.S. dollar on Thursday night, prompting the finance minister to warn of decisive government action [1].
This rapid devaluation threatens to increase the cost of imports and fuel inflation, putting pressure on the Japanese government to stabilize the currency market to protect national economic strength.
Finance Minister Satsuki Katayama said, "Our posture has not changed at all. We will take decisive action if necessary" [2]. The currency slide follows a rise in crude oil futures prices driven by instability in the Middle East, which has accelerated the weakening of the yen [3].
Katayama held an online meeting lasting nearly one hour with U.S. Treasury Secretary Scott Bessent to discuss the situation [4]. Reports indicate the yen has reached levels not seen in approximately 39 to 40 years [1], [4].
Business leaders have expressed concern that the currency's decline has become excessive. Yoshinobu Tsutui, chairman of the Japan Business Federation, said the country should move toward a moderate yen appreciation from the perspective of national economic power [2].
Masumi Kakiki, chairman of Marubeni, noted that the currency had previously remained between 140 and 150 yen [2]. He said that crossing the 160-yen threshold suggests the current rate is no longer appropriate [2].
The government continues to monitor the foreign exchange market in Tokyo as it weighs the timing and scale of potential interventions to curb the volatility [3].
“"Our posture has not changed at all. We will take decisive action if necessary"”
The convergence of Middle East geopolitical tension and diverging monetary policies between the U.S. and Japan is pushing the yen to historic lows. While a weak yen typically benefits exporters, the current volatility and the scale of the drop—approaching 40-year lows—are creating systemic risks for import-dependent sectors and consumer pricing, forcing the Ministry of Finance to signal a readiness for direct market intervention.
