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 stood at 3.49 percent on 12 February 2026, compared to 3.56 on 10 February 2026.
Sample. There are 4,467 observations overall in the daily series displayed in the figure above. The time span covered by the series extends from November 2007 to February 2026.
History. Here are some summary statistics calculated on the whole sample: the yield hit a peak of 3.90 percent on 20 January 2026; it reached its minimum of 0.07 on 6 July 2016; it had a mean value of 1.62.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-02-09 | 3.63 |
| 2026-02-10 | 3.563 |
| 2026-02-12 | 3.491 |
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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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