Indicators for Core CPI
The Bank of Japan updated its 'Indicators for Core CPI' research data on June 23, publishing trimmed mean, weighted median, mode and diffusion-index measures alongside CPI series that exclude institutional factors such a.
At a glance
- The BoJ released updated core CPI indicator data on June 23, 2026
- The indicators include trimmed mean, weighted median, mode and a diffusion index, per the BoJ page
VERDICT — CONFIRMED

The Bank of Japan updated its 'Indicators for Core CPI' research data on June 23, publishing trimmed mean, weighted median, mode and diffusion-index measures alongside CPI series that exclude institutional factors such as tax changes and energy cost measures. Per the BoJ page, the data are released at 2:00 p.m. two business days after Japan's official CPI; the index page itself shows no numerical values.
Key facts on file
- The BoJ released updated core CPI indicator data on June 23, 2026
- The indicators include trimmed mean, weighted median, mode and a diffusion index, per the BoJ page
