This indicator measures the annual change in Japan's core consumer prices, excluding volatile items, using a trimmed mean method to provide a clearer view of underlying inflation trends.
Releases at
06:00
Thursday, October 29, 2026 at 06:00
The Bank of Japan (BoJ) closely monitors this trimmed mean core CPI as it offers a more stable measure of inflation by excluding extreme price changes, helping to guide monetary policy decisions.
Investors watch this release to gauge inflation pressures in Japan, which influence expectations for interest rates and the BoJ's approach to stimulus measures.
Changes in this inflation measure can impact the Japanese yen and Japanese equity markets, as they reflect the health of the economy and the potential for policy shifts.
May signal rising inflation pressures, increasing the likelihood of tighter monetary policy and supporting the Japanese yen.
Suggests weaker inflation, which could lead to continued accommodative policy and pressure on the yen.
Likely to result in minimal market reaction as inflation trends meet forecasts.