bonds / 20Y / JGB (20-Year) No. 179
Bond Information
| Name | JGB (20-Year) No. 179 |
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| ISIN | — |
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| Issue # | 179 |
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| Coupon (%) | 0.5% semi-annual |
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| Issue Date | 2022-01-17 |
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| Maturity | 2041-12-20 （Remaining 15.2y） |
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| Outstanding | ¥3.5T （2026-03-31・MOF） |
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| Total issued | ¥4.1T （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 ¥63.7B（last 2026-07-08・BOJ） |
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| BOJ Holding | ¥270.9B（7.7%）（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 | 0.500 % |
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| Compound Yield | 0.4996 % |
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| Accrued Interest | 0.178082 (130 days) per 100 |
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| Settlement Amount | — |
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| Modified Duration | 14.55 |
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| Macaulay Duration | 14.59 |
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| DV01 | — |
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| Convexity | 224.5 |
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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 | 0.250 |
| 2027-06-20 | coupon | 0.250 |
| 2027-12-20 | coupon | 0.250 |
| …（26 omitted）… |
| 2041-06-20 | coupon | 0.250 |
| 2041-12-20 | coupon + redemption | 100.250 |
Related Auctions
Horizon total return settle 2026-10-28 ・ CMT 2026-10-23
| CMT interpolated (rem 15.1y) | 3.381 % → ref. price 66.048 |
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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 2027-01-28 | -50bp | 2.862 | 71.499 | -0.125 | +8.04% | +32.17% |
| -25bp | 3.112 | 69.033 | -0.125 | +4.32% | +17.28% |
| Unchanged (roll-down) | 3.362 | 66.658 | -0.125 | +0.73% | +2.93% |
| +25bp | 3.612 | 64.371 | -0.125 | -2.72% | -10.88% |
| +50bp | 3.862 | 62.166 | -0.125 | -6.05% | -24.20% |
| 6m 2027-04-28 | -50bp | 2.836 | 72.142 | 0.249 | +9.58% | +19.15% |
| -25bp | 3.086 | 69.692 | 0.249 | +5.88% | +11.76% |
| Unchanged (roll-down) | 3.336 | 67.331 | 0.249 | +2.31% | +4.62% |
| +25bp | 3.586 | 65.054 | 0.249 | -1.12% | -2.25% |
| +50bp | 3.836 | 62.860 | 0.249 | -4.44% | -8.88% |
| 12m 2027-10-28 | -50bp | 2.782 | 73.443 | 0.500 | +11.92% | +11.92% |
| -25bp | 3.032 | 71.027 | 0.500 | +8.27% | +8.27% |
| Unchanged (roll-down) | 3.282 | 68.696 | 0.500 | +4.75% | +4.75% |
| +25bp | 3.532 | 66.446 | 0.500 | +1.36% | +1.36% |
| +50bp | 3.782 | 64.274 | 0.500 | -1.92% | -1.92% |