40-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily
This series is part of the dataset: Japan constant-maturity government-bond yield curve (Ministry of Finance)
Download Full Dataset (.xlsx)Latest updates. In Japan, the 40-year government-bond yield was 3.44 percent on 13 November 2025, as on the previous day.
Sample. In the daily series plotted above, there are 4,408 observations. The span of time covered by the series is from November 2007 to November 2025.
History. Here's a snapshot of a few summary statistics we calculated on the full sample: the yield reached a minimum of 0.07 percent on 6 July 2016; it hit a peak of 3.44 on 8 September 2025; it was equal on average to 1.59.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-11-11 | 3.424 |
| 2025-11-12 | 3.436 |
| 2025-11-13 | 3.437 |
Hint. To simplify research, we categorize series into data sets and worksheets. If you navigate further down, you will discover how we structured further information related to the statistics found here.
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Series Metadata
| Field | Value |
|---|---|
| Description | 40-year yield; Japan government bond yield curve |
| Country | Japan |
| Economic concept | Interest rate |
| Data type | Semiannually compounded interest rate |
| Deflation method | Not applicable |
| Seasonally adjusted | No |
| Rescaling | None |
| Frequency | Daily |
| Unit | Percentage points |
| Source | Japan Ministry of Finance |
| Source type | National source |
| Data licence | Public Data Licence |
| Measure type | Interpolated level (constant maturity; cubic spline) |