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 17.5y） |
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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 2026-08-31・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 | 1.600 % |
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| Compound Yield | 1.5987 % |
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| Accrued Interest | 0.775890 (177 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 | 258.2 |
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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 2026-09-13 ・ CMT 2026-09-10
| CMT interpolated (rem 17.5y) | 3.609 % → ref. price 74.048 |
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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 | 3.095 | 80.095 | -0.408 | +7.54% | +30.15% |
| -25bp | 3.345 | 77.227 | -0.408 | +3.70% | +14.82% |
| Unchanged (roll-down) | 3.595 | 74.476 | -0.408 | +0.03% | +0.11% |
| +25bp | 3.845 | 71.835 | -0.408 | -3.50% | -14.01% |
| +50bp | 4.095 | 69.302 | -0.408 | -6.89% | -27.55% |
| 6m 2027-03-13 | -50bp | 3.081 | 80.479 | 0.787 | +9.65% | +19.29% |
| -25bp | 3.331 | 77.630 | 0.787 | +5.84% | +11.68% |
| Unchanged (roll-down) | 3.581 | 74.895 | 0.787 | +2.18% | +4.37% |
| +25bp | 3.831 | 72.270 | 0.787 | -1.33% | -2.65% |
| +50bp | 4.081 | 69.749 | 0.787 | -4.69% | -9.39% |
| 12m 2027-09-13 | -50bp | 3.051 | 81.251 | 1.600 | +11.77% | +11.77% |
| -25bp | 3.301 | 78.443 | 1.600 | +8.01% | +8.01% |
| Unchanged (roll-down) | 3.551 | 75.744 | 1.600 | +4.40% | +4.40% |
| +25bp | 3.801 | 73.150 | 1.600 | +0.94% | +0.94% |
| +50bp | 4.051 | 70.657 | 1.600 | -2.39% | -2.39% |