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 3.60 percent on 29 September 2026, unchanged with respect to 28 September 2026.
Sample. There are 8,606 observations in the daily time series shown in the chart above. The time span covered by the series extends from August 1991 to September 2026.
History. Here's a glimpse of some statistics we computed on the full sample: the yield had an average value of 1.89 percent; it recorded a bottom of -0.15 on 8 July 2016; it attained a maximum of 6.55 on 30 August 1991.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-09-25 | 3.597 |
| 2026-09-28 | 3.602 |
| 2026-09-29 | 3.603 |
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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) |
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