Japan Core CPI YoY in 2026
Leaning No: the latest BOJ outlook on November 2, 2026 still points to inflation around 2% or higher, and September core CPI was already 2.1%. That makes a 2026 annual average at or below 1.9% look less likely than the market price suggests.
Analysis
On November 2, 2026, Japan’s core CPI was reported at 2.1% in September, and the BOJ said underlying inflation has moved toward around 2% with risks skewed upward. That is the freshest concrete evidence and it leans against a full-year 2026 average at or below 1.9%.
The BOJ’s fiscal 2026 CPI ex-fresh-food forecast was 2.5%, which is not the same measure as the calendar year but still points to inflation staying above the threshold. The main reason to keep some Yes probability is that monthly inflation could slow later in 2026 and pull the annual average down, but the current data do not show that yet.
Arguments
For
- Recent national core CPI is already above 2%, which leaves limited room for a 2026 annual average of 1.9% or less.
- The BOJ explicitly described price risks as skewed upward on November 2, 2026.
- Tokyo’s October 2026 core CPI at 2.6% suggests near-term national inflation pressure remains firm.
Against
- This market resolves on the full calendar-year 2026 average, so a slowdown in late 2026 could still pull the figure under 1.9%.
- The BOJ has said it is still unclear how long inflation near 2% will persist, which leaves room for a softer second half.
- If energy effects fade quickly, the annual average can come in below recent monthly readings.
Key drivers
- September 2026 core CPI came in at 2.1%, already above the 1.9% cutoff for the market.
- The BOJ’s November 2, 2026 forecast for fiscal 2026 CPI ex fresh food was 2.5%, signaling inflation pressure likely stays elevated.
Risk factors
- A late-2026 drop in energy and food-related pass-through could drag the calendar-year average lower than recent monthly readings imply.
- If households and firms do not keep raising prices and wages, the inflation trend could soften faster than the BOJ expects.
Scenarios
Best case
If October through December 2026 core CPI stays near or above 2.0% (when released in late 2026 and January 2027), Yes rises to about 85%.
Most likely
Most likely the 2026 annual core CPI lands above 1.9%, with Yes around 74%.
Worst case
If late-2026 core CPI drops to around 1.5% or lower for several months (by the January 22, 2027 release), Yes falls to about 60%.
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