bonds / 40Y / JGB (40-Year) No. 1
Bond Information
| Name | JGB (40-Year) No. 1 |
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| ISIN | — |
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| Issue # | 1 |
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| Coupon (%) | 2.4% semi-annual |
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| Issue Date | 2007-11-20 |
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| Maturity | 2048-03-20 （Remaining 21.4y） |
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| Outstanding | ¥1.1T （2026-03-31・MOF） |
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| Total issued | ¥1.1T （annual report, FY-end） |
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| Statutory basis | 4条借換前倒 |
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| STRIPS principal | ¥29.9B （2026-09-30） |
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| SLF usage | last 30d —／ total ¥28B（last 2026-05-13・BOJ） |
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| BOJ Holding | ¥444.7B（39.4%）（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 | 2.400 % |
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| Compound Yield | 2.3986 % |
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| Accrued Interest | 0.249863 (38 days) per 100 |
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| Settlement Amount | — |
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| Modified Duration | 16.63 |
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| Macaulay Duration | 16.83 |
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| DV01 | — |
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| Convexity | 330.1 |
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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 | 1.200 |
| 2027-09-20 | coupon | 1.200 |
| 2028-03-20 | coupon | 1.200 |
| …（38 omitted）… |
| 2047-09-20 | coupon | 1.200 |
| 2048-03-20 | coupon + redemption | 101.200 |
Related Auctions
Horizon total return settle 2026-10-28 ・ CMT 2026-10-23
| CMT interpolated (rem 21.4y) | 3.727 % → ref. price 80.525 |
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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 | 3.212 | 87.578 | 0.605 | +9.48% | +37.92% |
| -25bp | 3.462 | 84.140 | 0.605 | +5.22% | +20.90% |
| Unchanged (roll-down) | 3.712 | 80.864 | 0.605 | +1.17% | +4.68% |
| +25bp | 3.962 | 77.743 | 0.605 | -2.69% | -10.78% |
| +50bp | 4.212 | 74.768 | 0.605 | -6.38% | -25.51% |
| 6m 2027-04-28 | -50bp | 3.198 | 87.873 | 1.207 | +10.59% | +21.18% |
| -25bp | 3.448 | 84.450 | 1.207 | +6.35% | +12.71% |
| Unchanged (roll-down) | 3.698 | 81.187 | 1.207 | +2.31% | +4.63% |
| +25bp | 3.948 | 78.076 | 1.207 | -1.54% | -3.07% |
| +50bp | 4.198 | 75.110 | 1.207 | -5.21% | -10.42% |
| 12m 2027-10-28 | -50bp | 3.168 | 88.496 | 2.400 | +12.84% | +12.84% |
| -25bp | 3.418 | 85.106 | 2.400 | +8.64% | +8.64% |
| Unchanged (roll-down) | 3.668 | 81.870 | 2.400 | +4.64% | +4.64% |
| +25bp | 3.918 | 78.783 | 2.400 | +0.82% | +0.82% |
| +50bp | 4.168 | 75.836 | 2.400 | -2.83% | -2.83% |