15-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 15-year government-bond yield was 2.22 percent on 30 September 2025, versus 2.20 on the previous day.
Sample. There are 8,365 observations overall in the daily series displayed in the graph above. The time range covered by the series extends from August 1991 to September 2025.
History. Take a look at a few summary statistics calculated on the full sample: the yield averaged 1.86 percent; it hit a trough of -0.15 on 8 July 2016; it achieved a maximum of 6.55 on 30 August 1991.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-09-26 | 2.226 |
| 2025-09-29 | 2.201 |
| 2025-09-30 | 2.217 |
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Series Metadata
| Field | Value |
|---|---|
| Description | 15-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) |