USD/JPY moved towards 153 after stronger US payrolls reduced expectations for near-term Federal Reserve rate cuts, while the Japanese yen firmed. Japanese authorities remain focused on foreign exchange moves despite the yen’s recent gains.
Vice Finance Minister for International Affairs Atsushi Mimura said the authorities are “not lowering our guard at all”. He said the government remains on high alert over foreign exchange movements.
Japan Maintains Intervention Watch
Mimura did not comment on speculation about possible exchange rate checks. He said Japan will keep monitoring markets with a high sense of urgency and stay in close communication with US authorities and market participants.
Jiji press reported that Japan asked the US to conduct exchange rate checks in January. The article was produced using an artificial intelligence tool and reviewed by an editor.
With USD/JPY now pushing toward 160, the vigilance from Japanese authorities we saw throughout 2025 has become even more critical. Recent strong U.S. labor statistics for January 2026 are creating a similar dynamic to last year, strengthening the dollar and stretching the yen to a breaking point. We must treat the risk of direct intervention as extremely high in the coming weeks.
Looking back, we saw Japan intervene forcefully in 2022 when the pair was near 152, a level far below where we are today. The warnings and reported exchange rate checks with the U.S. back in 2025 were a clear signal of their discomfort even then. This history shows their tolerance has limits, and we are likely well past them now.
Positioning And Hedging Considerations
The latest domestic data adds to the pressure, as Japan’s core inflation for January 2026 came in at 2.2%, remaining above the Bank of Japan’s target. This divergence between domestic inflation data and the currency’s weakness likely increases official frustration. This makes sudden, sharp official action to strengthen the yen more probable.
For our derivative positions, buying out-of-the-money puts on USD/JPY is a direct and prudent way to hedge against or speculate on a sudden drop. While implied volatility has risen, making these options more expensive, the cost reflects the real and present danger of a 5-10 yen move downward overnight. The current environment justifies paying this premium for protection.
We should also view the elevated volatility as a trading opportunity in itself. Strategies that benefit from sharp price swings, such as long straddles, could be effective. The persistent official warnings, or “jawboning,” will likely keep volatility high, punishing anyone who is short volatility and unprepared for a sudden policy shock.
The popular carry trade of being long USD/JPY feels exceptionally dangerous at these levels. A sudden intervention could erase months, or even a year, of interest rate gains in a single trading session. We must reconsider the risk-reward of holding unhedged carry positions, as the potential downside from official action is now significantly greater than the yield pickup.
