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 17.4y） |
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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 —／ total ¥67.8B（last 2026-08-14・BOJ） |
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| BOJ Holding | ¥312.6B（9.7%）（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 | 1.600 % |
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| Compound Yield | 1.5991 % |
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| Accrued Interest | 0.166575 (38 days) per 100 |
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| Settlement Amount | — |
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| Modified Duration | 15.12 |
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| Macaulay Duration | 15.24 |
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| DV01 | — |
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| Convexity | 256.5 |
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Estimates based on the input price.
Cashflow Schedule
| Date | Type | Amount (per 100) |
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| 2027-03-20 | coupon | 0.800 |
| 2027-09-20 | coupon | 0.800 |
| 2028-03-20 | coupon | 0.800 |
| …（30 omitted）… |
| 2043-09-20 | coupon | 0.800 |
| 2044-03-20 | coupon + redemption | 100.800 |
Related Auctions
Horizon total return settle 2026-10-28 ・ CMT 2026-10-23
| CMT interpolated (rem 17.4y) | 3.503 % → ref. price 75.343 |
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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 | 2.989 | 81.446 | 0.403 | +8.62% | +34.47% |
| -25bp | 3.239 | 78.541 | 0.403 | +4.77% | +19.08% |
| Unchanged (roll-down) | 3.489 | 75.753 | 0.403 | +1.08% | +4.31% |
| +25bp | 3.739 | 73.077 | 0.403 | -2.47% | -9.86% |
| +50bp | 3.989 | 70.509 | 0.403 | -5.87% | -23.47% |
| 6m 2027-04-28 | -50bp | 2.976 | 81.803 | 0.804 | +9.62% | +19.24% |
| -25bp | 3.226 | 78.918 | 0.804 | +5.80% | +11.60% |
| Unchanged (roll-down) | 3.476 | 76.148 | 0.804 | +2.13% | +4.26% |
| +25bp | 3.726 | 73.489 | 0.804 | -1.39% | -2.78% |
| +50bp | 3.976 | 70.935 | 0.804 | -4.77% | -9.54% |
| 12m 2027-10-28 | -50bp | 2.949 | 82.543 | 1.600 | +11.65% | +11.65% |
| -25bp | 3.199 | 79.702 | 1.600 | +7.89% | +7.89% |
| Unchanged (roll-down) | 3.449 | 76.971 | 1.600 | +4.28% | +4.28% |
| +25bp | 3.699 | 74.346 | 1.600 | +0.80% | +0.80% |
| +50bp | 3.949 | 71.823 | 1.600 | -2.54% | -2.54% |