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15-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily

Latest updates. In Japan, the 15-year government-bond yield was 3.53 percent on 17 September 2026, compared to 3.54 on 16 September 2026.

Sample. There are 8,601 data points overall in the daily series presented in the chart above. The series covers the span of time extending from August 1991 to September 2026.

History. Take a look at some simple statistics calculated on the whole sample: the yield had a mean value of 1.89 percent; it reached its minimum of -0.15 on 8 July 2016; it reached its highest level of 6.55 on 30 August 1991.

Latest values

Date Value - Percentage points
2026-09-15 3.57200
2026-09-16 3.54500
2026-09-17 3.53400

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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)

Series in the same data set

Discover the other time series included in this data set.

Nominal yields

Series Name Observations Start Date End Date
1-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 12655 1974-09-24 2026-09-17
2-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 12942 1974-09-24 2026-09-17
3-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13227 1974-09-24 2026-09-17
4-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13303 1974-09-24 2026-09-17
5-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13303 1974-09-24 2026-09-17
6-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13303 1974-09-24 2026-09-17
7-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13303 1974-09-24 2026-09-17
8-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13303 1974-09-24 2026-09-17
9-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13303 1974-09-24 2026-09-17
10-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 9942 1986-07-05 2026-09-17
15-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 8601 1991-08-30 2026-09-17
20-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 9829 1986-12-01 2026-09-17
25-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 5508 2004-03-22 2026-09-17
30-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 6626 1999-09-02 2026-09-17
40-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 4614 2007-11-06 2026-09-17