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 21.6y） |
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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 （2026-06-30） |
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| SLF usage | last 30d —／ total ¥28B（last 2026-05-13・BOJ） |
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| BOJ Holding | ¥437.1B（38.8%）（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 | 2.400 % |
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| Compound Yield | 2.3980 % |
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| Accrued Interest | 1.025753 (156 days) per 100 |
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| Settlement Amount | — |
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| Modified Duration | 16.61 |
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| Macaulay Duration | 16.81 |
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| DV01 | — |
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| Convexity | 332.2 |
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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 | 1.200 |
| 2027-03-20 | coupon | 1.200 |
| 2027-09-20 | coupon | 1.200 |
| …（39 omitted）… |
| 2047-09-20 | coupon | 1.200 |
| 2048-03-20 | coupon + redemption | 101.200 |
Related Auctions
Horizon total return settle 2026-08-23 ・ CMT 2026-08-20
| CMT interpolated (rem 21.6y) | 3.813 % → ref. price 79.310 |
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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 | 3.298 | 86.300 | -0.605 | +7.95% | +31.79% |
| -25bp | 3.548 | 82.902 | -0.605 | +3.72% | +14.87% |
| Unchanged (roll-down) | 3.798 | 79.665 | -0.605 | -0.31% | -1.24% |
| +25bp | 4.048 | 76.581 | -0.605 | -4.15% | -16.60% |
| +50bp | 4.298 | 73.643 | -0.605 | -7.81% | -31.23% |
| 6m 2027-02-23 | -50bp | 3.283 | 86.621 | 1.200 | +10.59% | +21.19% |
| -25bp | 3.533 | 83.237 | 1.200 | +6.38% | +12.76% |
| Unchanged (roll-down) | 3.783 | 80.012 | 1.200 | +2.37% | +4.74% |
| +25bp | 4.033 | 76.938 | 1.200 | -1.46% | -2.92% |
| +50bp | 4.283 | 74.008 | 1.200 | -5.11% | -10.21% |
| 12m 2027-08-23 | -50bp | 3.253 | 87.236 | 2.400 | +12.85% | +12.85% |
| -25bp | 3.503 | 83.881 | 2.400 | +8.68% | +8.68% |
| Unchanged (roll-down) | 3.753 | 80.681 | 2.400 | +4.69% | +4.69% |
| +25bp | 4.003 | 77.628 | 2.400 | +0.89% | +0.89% |
| +50bp | 4.253 | 74.715 | 2.400 | -2.73% | -2.73% |