bonds / 20Y / JGB (20-Year) No. 187
Bond Information
| Name | JGB (20-Year) No. 187 |
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| ISIN | — |
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| Issue # | 187 |
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| Coupon (%) | 1.3% semi-annual |
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| Issue Date | 2024-01-19 |
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| Maturity | 2043-12-20 （Remaining 17.1y） |
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| Outstanding | ¥2.5T （2026-03-31・MOF） |
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| Total issued | ¥3.2T （annual report, FY-end） |
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| Statutory basis | 4条特例借換前倒財投 |
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| SLF usage | last 30d ¥6B／ total ¥49.9B（last 2026-10-15・BOJ） |
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| BOJ Holding | ¥259.3B（10.3%）（as of 2026-10-20・Source: BOJ・Ratios approximate due to differing as-of dates） |
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| Status | active |
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Results
Yield Calculator (price input) | Simple Yield | 1.300 % |
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| Compound Yield | 1.2990 % |
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| Accrued Interest | 0.463014 (130 days) per 100 |
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| Settlement Amount | — |
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| Modified Duration | 15.26 |
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| Macaulay Duration | 15.36 |
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| DV01 | — |
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| Convexity | 258.1 |
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Estimates based on the input price.
Cashflow Schedule
| Date | Type | Amount (per 100) |
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| 2026-12-20 | coupon | 0.650 |
| 2027-06-20 | coupon | 0.650 |
| 2027-12-20 | coupon | 0.650 |
| …（30 omitted）… |
| 2043-06-20 | coupon | 0.650 |
| 2043-12-20 | coupon + redemption | 100.650 |
Related Auctions
Horizon total return settle 2026-10-28 ・ CMT 2026-10-23
| CMT interpolated (rem 17.1y) | 3.490 % → ref. price 71.899 |
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| G-spread (vs interpolated CMT) | — |
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| Horizon | Scenario | Yield@H | Price@H | Carry | Total return | Ann. |
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| 3m 2027-01-28 | -50bp | 2.976 | 77.851 | -0.324 | +7.78% | +31.11% |
| -25bp | 3.226 | 75.044 | -0.324 | +3.90% | +15.59% |
| Unchanged (roll-down) | 3.476 | 72.349 | -0.324 | +0.17% | +0.70% |
| +25bp | 3.726 | 69.763 | -0.324 | -3.40% | -13.60% |
| +50bp | 3.976 | 67.280 | -0.324 | -6.83% | -27.33% |
| 6m 2027-04-28 | -50bp | 2.963 | 78.253 | 0.646 | +9.67% | +19.35% |
| -25bp | 3.213 | 75.465 | 0.646 | +5.82% | +11.64% |
| Unchanged (roll-down) | 3.463 | 72.788 | 0.646 | +2.12% | +4.24% |
| +25bp | 3.713 | 70.216 | 0.646 | -1.43% | -2.86% |
| +50bp | 3.963 | 67.747 | 0.646 | -4.84% | -9.69% |
| 12m 2027-10-28 | -50bp | 2.935 | 79.067 | 1.300 | +11.70% | +11.70% |
| -25bp | 3.185 | 76.320 | 1.300 | +7.91% | +7.91% |
| Unchanged (roll-down) | 3.435 | 73.680 | 1.300 | +4.26% | +4.26% |
| +25bp | 3.685 | 71.141 | 1.300 | +0.75% | +0.75% |
| +50bp | 3.935 | 68.700 | 1.300 | -2.62% | -2.62% |