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 2026-08-31・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 | 1.000 % |
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| Compound Yield | 0.9992 % |
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| Accrued Interest | 0.232877 (85 days) per 100 |
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| Settlement Amount | — |
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| Modified Duration | 8.82 |
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| Macaulay Duration | 8.86 |
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| DV01 | — |
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| Convexity | 84.5 |
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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 2026-09-13 ・ CMT 2026-09-10
| CMT interpolated (rem 9.3y) | 2.819 % → ref. price 85.240 |
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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 | 2.285 | 89.572 | 0.249 | +5.36% | +21.44% |
| -25bp | 2.535 | 87.684 | 0.249 | +3.15% | +12.61% |
| Unchanged (roll-down) | 2.785 | 85.840 | 0.249 | +0.99% | +3.97% |
| +25bp | 3.035 | 84.037 | 0.249 | -1.12% | -4.46% |
| +50bp | 3.285 | 82.276 | 0.249 | -3.18% | -12.70% |
| 6m 2027-03-13 | -50bp | 2.252 | 90.076 | 0.495 | +6.24% | +12.47% |
| -25bp | 2.502 | 88.226 | 0.495 | +4.07% | +8.14% |
| Unchanged (roll-down) | 2.752 | 86.417 | 0.495 | +1.96% | +3.91% |
| +25bp | 3.002 | 84.648 | 0.495 | -0.11% | -0.23% |
| +50bp | 3.252 | 82.919 | 0.495 | -2.14% | -4.27% |
| 12m 2027-09-13 | -50bp | 2.185 | 91.071 | 1.000 | +7.99% | +7.99% |
| -25bp | 2.435 | 89.301 | 1.000 | +5.92% | +5.92% |
| Unchanged (roll-down) | 2.685 | 87.569 | 1.000 | +3.89% | +3.89% |
| +25bp | 2.935 | 85.873 | 1.000 | +1.91% | +1.91% |
| +50bp | 3.185 | 84.212 | 1.000 | -0.03% | -0.03% |