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 17.3y） |
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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 —／ total ¥42.9B（last 2026-07-29・BOJ） |
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| BOJ Holding | ¥259.3B（10.3%）（as of 2026-08-31・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 | 0.302740 (85 days) per 100 |
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| Settlement Amount | — |
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| Modified Duration | 15.39 |
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| Macaulay Duration | 15.49 |
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| DV01 | — |
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| Convexity | 262.0 |
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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 2026-09-13 ・ CMT 2026-09-10
| CMT interpolated (rem 17.3y) | 3.595 % → ref. price 70.638 |
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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 2026-12-13 | -50bp | 3.080 | 76.530 | 0.324 | +8.76% | +35.05% |
| -25bp | 3.330 | 73.758 | 0.324 | +4.85% | +19.42% |
| Unchanged (roll-down) | 3.580 | 71.098 | 0.324 | +1.11% | +4.42% |
| +25bp | 3.830 | 68.546 | 0.324 | -2.49% | -9.97% |
| +50bp | 4.080 | 66.096 | 0.324 | -5.95% | -23.78% |
| 6m 2027-03-13 | -50bp | 3.066 | 76.951 | 0.643 | +9.81% | +19.61% |
| -25bp | 3.316 | 74.197 | 0.643 | +5.92% | +11.85% |
| Unchanged (roll-down) | 3.566 | 71.553 | 0.643 | +2.20% | +4.39% |
| +25bp | 3.816 | 69.014 | 0.643 | -1.38% | -2.77% |
| +50bp | 4.066 | 66.576 | 0.643 | -4.82% | -9.64% |
| 12m 2027-09-13 | -50bp | 3.037 | 77.808 | 1.300 | +11.94% | +11.94% |
| -25bp | 3.287 | 75.092 | 1.300 | +8.11% | +8.11% |
| Unchanged (roll-down) | 3.537 | 72.482 | 1.300 | +4.43% | +4.43% |
| +25bp | 3.787 | 69.973 | 1.300 | +0.89% | +0.89% |
| +50bp | 4.037 | 67.560 | 1.300 | -2.51% | -2.51% |