Japan’s January CPI fell to 1.5% year-on-year, down from 2.1% in December. Core CPI was 2.0% year-on-year, down from 2.4% and the lowest core reading in two years.
The drop in headline inflation was linked to utility subsidies and base effects from last year’s price rises. Core inflation also moved lower over the month.
BoJ Policy Implications
Lower core inflation may affect how soon the Bank of Japan raises interest rates. Demand indicators remained firm, with February flash PMIs showing strength and fiscal policy becoming more supportive.
The latest inflation data from January has complicated our view on the Bank of Japan’s next move. We saw headline inflation fall to 1.5% and core inflation drop to 2.0%, which is the lowest reading we have seen in two years. This cooling inflation makes it harder for the central bank to justify an imminent interest rate hike.
We need to remember that much of this drop was expected due to government utility subsidies and base effects from the price surges we experienced in early 2025. Still, the fact that core inflation has hit the central bank’s 2% target could give more dovish members reason to wait. This suggests that the conviction for a rate hike in the March or April meetings is likely fading across the market.
However, the demand side of the economy appears robust, creating a conflicting signal for the BoJ. The latest Jibun Bank Flash Composite PMI for February rose to 52.5, indicating accelerating business activity. More importantly, we are closely watching the preliminary results from the Shunto spring wage negotiations, where major unions are demanding raises above 4% for the third year in a row.
Options And FX Positioning
This uncertainty about timing creates an opportunity in the options market. Implied volatility for USD/JPY options has been relatively low, but this tension between soft inflation and strong wage pressures could lead to a sharp move in the coming weeks. We believe buying volatility through structures like straddles could be a prudent way to position for a potential policy surprise.
For those with a directional view, the path for USD/JPY is tricky. A delayed rate hike could allow the pair to drift higher, but we remember the Ministry of Finance stepped in with verbal and physical interventions when the yen weakened past the 152 level during 2024 and 2025. This level likely remains a key line of defense, capping the immediate upside.
