bonds / 20Y / JGB (20-Year) No. 188
Bond Information
| Name | JGB (20-Year) No. 188 |
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| ISIN | — |
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| Issue # | 188 |
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| Coupon (%) | 1.6% semi-annual |
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| Issue Date | 2024-04-12 |
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| Maturity | 2044-03-20 （Remaining 17.6y） |
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| Outstanding | ¥3.2T （2026-03-31・MOF） |
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| Total issued | ¥3.2T （annual report, FY-end） |
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| Statutory basis | 4条借換 |
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| SLF usage | last 30d ¥400M／ total ¥67.8B（last 2026-08-14・BOJ） |
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| BOJ Holding | ¥312B（9.7%）（as of 2026-08-10・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 | 1.600 % |
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| Compound Yield | 1.5987 % |
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| Accrued Interest | 0.683836 (156 days) per 100 |
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| Settlement Amount | — |
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| Modified Duration | 15.17 |
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| Macaulay Duration | 15.30 |
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| DV01 | — |
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| Convexity | 259.9 |
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Estimates based on the input price.
Cashflow Schedule
| Date | Type | Amount (per 100) |
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| 2026-09-20 | coupon | 0.800 |
| 2027-03-20 | coupon | 0.800 |
| 2027-09-20 | coupon | 0.800 |
| …（31 omitted）… |
| 2043-09-20 | coupon | 0.800 |
| 2044-03-20 | coupon + redemption | 100.800 |
Related Auctions
Horizon total return settle 2026-08-23 ・ CMT 2026-08-20
| CMT interpolated (rem 17.6y) | 3.569 % → ref. price 74.432 |
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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 2026-11-23 | -50bp | 3.053 | 80.542 | -0.403 | +7.60% | +30.39% |
| -25bp | 3.303 | 77.648 | -0.403 | +3.75% | +14.98% |
| Unchanged (roll-down) | 3.553 | 74.872 | -0.403 | +0.05% | +0.20% |
| +25bp | 3.803 | 72.209 | -0.403 | -3.50% | -13.98% |
| +50bp | 4.053 | 69.654 | -0.403 | -6.90% | -27.59% |
| 6m 2027-02-23 | -50bp | 3.037 | 80.942 | 0.800 | +9.73% | +19.46% |
| -25bp | 3.287 | 78.067 | 0.800 | +5.90% | +11.81% |
| Unchanged (roll-down) | 3.537 | 75.308 | 0.800 | +2.23% | +4.46% |
| +25bp | 3.787 | 72.659 | 0.800 | -1.29% | -2.59% |
| +50bp | 4.037 | 70.117 | 0.800 | -4.68% | -9.36% |
| 12m 2027-08-23 | -50bp | 3.007 | 81.716 | 1.600 | +11.83% | +11.83% |
| -25bp | 3.257 | 78.880 | 1.600 | +8.05% | +8.05% |
| Unchanged (roll-down) | 3.507 | 76.156 | 1.600 | +4.43% | +4.43% |
| +25bp | 3.757 | 73.539 | 1.600 | +0.94% | +0.94% |
| +50bp | 4.007 | 71.023 | 1.600 | -2.41% | -2.41% |