bonds / 20Y / JGB (20-Year) No. 155
Bond Information
| Name | JGB (20-Year) No. 155 |
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| ISIN | — |
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| Issue # | 155 |
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| Coupon (%) | 1% semi-annual |
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| Issue Date | 2015-12-21 |
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| Maturity | 2035-12-20 （Remaining 9.3y） |
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| Outstanding | ¥4.6T （2026-03-31・MOF） |
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| Total issued | ¥4.6T （annual report, FY-end） |
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| Statutory basis | 4条特例借換前倒財投 |
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| SLF usage | last 30d —／ total ¥151.8B（last 2026-04-21・BOJ） |
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| BOJ Holding | ¥2.3T（51.4%）（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 | 1.000 % |
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| Compound Yield | 0.9992 % |
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| Accrued Interest | 0.175342 (64 days) per 100 |
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| Settlement Amount | — |
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| Modified Duration | 8.87 |
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| Macaulay Duration | 8.92 |
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| DV01 | — |
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| Convexity | 85.5 |
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Estimates based on the input price.
Cashflow Schedule
| Date | Type | Amount (per 100) |
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| 2026-12-20 | coupon | 0.500 |
| 2027-06-20 | coupon | 0.500 |
| 2027-12-20 | coupon | 0.500 |
| …（14 omitted）… |
| 2035-06-20 | coupon | 0.500 |
| 2035-12-20 | coupon + redemption | 100.500 |
Related Auctions
Horizon total return settle 2026-08-23 ・ CMT 2026-08-20
| CMT interpolated (rem 9.3y) | 2.759 % → ref. price 85.610 |
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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 | 2.223 | 89.986 | 0.252 | +5.40% | +21.58% |
| -25bp | 2.473 | 88.078 | 0.252 | +3.17% | +12.68% |
| Unchanged (roll-down) | 2.723 | 86.214 | 0.252 | +1.00% | +3.99% |
| +25bp | 2.973 | 84.392 | 0.252 | -1.13% | -4.50% |
| +50bp | 3.223 | 82.613 | 0.252 | -3.20% | -12.80% |
| 6m 2027-02-23 | -50bp | 2.188 | 90.502 | 0.503 | +6.29% | +12.58% |
| -25bp | 2.438 | 88.632 | 0.503 | +4.11% | +8.22% |
| Unchanged (roll-down) | 2.688 | 86.805 | 0.503 | +1.98% | +3.96% |
| +25bp | 2.938 | 85.018 | 0.503 | -0.10% | -0.21% |
| +50bp | 3.188 | 83.272 | 0.503 | -2.14% | -4.28% |
| 12m 2027-08-23 | -50bp | 2.121 | 91.477 | 1.000 | +8.01% | +8.01% |
| -25bp | 2.371 | 89.686 | 1.000 | +5.92% | +5.92% |
| Unchanged (roll-down) | 2.621 | 87.934 | 1.000 | +3.88% | +3.88% |
| +25bp | 2.871 | 86.219 | 1.000 | +1.88% | +1.88% |
| +50bp | 3.121 | 84.541 | 1.000 | -0.08% | -0.08% |