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 4.01 percent on 12 November 2026, compared to 4.03 on the previous day.
Sample. There are 4,649 observations in the daily time series displayed in the plot above. The series covers the period going from November 2007 to November 2026.
History. Here's a glimpse of some simple statistics computed on the entire sample: the yield reached its maximum of 4.20 percent on 6 October 2026; it recorded a minimum of 0.07 percent on 6 July 2016; it had a mean of 1.70 percent.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-11-10 | 3.99600 |
| 2026-11-11 | 4.02900 |
| 2026-11-12 | 4.00600 |
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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) |
Series in the same data set
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