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Data from World Bank. Forecasts by Sigmanomics Forecast Engine.
JapanJapan GDP Deflator (Annual %) climbed to 3.42 Percent in December 2025
World BankYearlyReleased December 2025
Japan GDP Deflator (Annual %) climbed to 3.42 Percent in December 2025, up 0.22 Percent from November's 3.2 Percent reading.
Latest Release
3.422329
Actual
—
Consensus
3.201020
Previous
Sigmacast Track Record
Sigmacast track record will appear here once this indicator has been released 3+ times since Sigmanomics began tracking.
Sigmacast Σ-direction model: consensus + ½ × mean(surprise, trailing 90d).
CORRELATED SYMBOLS— markets that historically move with this indicator
| Symbol | Direction | Correlation | Asset Class | Co-movement | Action |
|---|---|---|---|---|---|
| EUR/USD | ▲ Direct | +0.30 | FOREX | Moves with | → View |
| XAU/USD | ▲ Direct | +0.30 | COMMODITIES | Moves with | → View |
| S&P 500 | ▲ Direct | +0.30 | INDEX | Moves with | → View |
| BTC/USD | ▲ Direct | +0.30 | CRYPTO | Moves with | → View |
| USD/JPY | ▲ Direct | +0.30 | FOREX | Moves with | → View |
Correlation based on 12-month rolling window. Click any symbol to view its Sigmanomics forecast page.
THE RELEASE
GDP Deflator (Annual %) (Japan) was reported at 3.42 Percent in December 2025. The reading rose from the previous value of 3.20 Percent. This is classified as a medium-impact indicator released on a yearly basis.
WHY IT MATTERS
In December readings over the past 3 years, GDP Deflator (Annual %) has averaged 3.73 Percent.
WHAT TO WATCH NEXT
Same-country events in the next 14 days include Machinery Orders MoM (Oct 14) and Machinery Orders YoY (Oct 14).
Auto-generated from current model state · Refreshes on each release · Last update December 2025.
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GDP Deflator (Annual %) - JP
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About GDP Deflator (Annual %) — Japan
DEFINITION
Japan's GDP Deflator (Annual %) for December 2025 rose to 3.422329%, surpassing November 2024's 3.201020% and indicating accelerating inflationary pressure. This increase marks a continuation of the upward trend following the 4.568964% recorded in December 2023. Market participants will watch for further inflation data as the Bank of Japan maintains its accommodative monetary policy. Updated 7/1/26
WHY THIS INDICATOR MATTERS
Inflation prints feed directly into central-bank policy expectations and real-yield calculations, and are among the most rate-sensitive releases on the calendar. Surprises against consensus can drive short-term moves, particularly when the print breaks an established trend. Released annually.
WHAT'S NEXT
Sigmacast's 1-month forecast points to a higher reading versus the latest print. Current dynamics are the primary tailwind in the projection.
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Economic Calendar - JP Events
| Monday, October 12, 2026 | Actual | Previous | Consensus | Sigmanomics Rolling-Surprise Forecast | Impact | ||
|---|---|---|---|---|---|---|---|
| 23:50 | JP | Producer Price Index MoM | -0.3 | -0.3 | 0.5 | 0.10 | Low |
| 23:50 | JP | Producer Price Index YoY | 6.8 | 7.6 | 7.6 | 7.20 | Low |
| 23:50 | JP | Bank Lending YoY | 5.3 | 5.3 | 5.5 | 5.40 | Low |
| Wednesday, October 14, 2026 | Actual | Previous | Consensus | Sigmanomics Rolling-Surprise Forecast | Impact | ||
| 23:50 | JP | Machinery Orders MoM | -3.7 | 3 | -1.10 | Medium | |
| 23:50 | JP | Machinery Orders YoY | 11.2 | 15.7 | 8.30 | Medium | |
| Thursday, October 15, 2026 | Actual | Previous | Consensus | Sigmanomics Rolling-Surprise Forecast | Impact | ||
| 04:30 | JP | Capacity Utilization | 0.5 | 0.2 | -0.20 | Low | |
| 04:30 | JP | Industrial Production MoM | 6.4 | -0.2 | 0.3 | 1.73 | Low |
| 04:30 | JP | Industrial Production YoY | 3.9 | 3.7 | 3.50 | Low | |