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 15.3y） |
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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 2026-08-10・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 | 0.500 % |
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| Compound Yield | 0.4996 % |
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| Accrued Interest | 0.087671 (64 days) per 100 |
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| Settlement Amount | — |
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| Modified Duration | 14.73 |
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| Macaulay Duration | 14.77 |
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| DV01 | — |
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| Convexity | 229.9 |
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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 2026-08-23 ・ CMT 2026-08-20
| CMT interpolated (rem 15.3y) | 3.429 % → ref. price 65.284 |
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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 | 2.914 | 70.702 | 0.126 | +8.48% | +33.93% |
| -25bp | 3.164 | 68.238 | 0.126 | +4.71% | +18.85% |
| Unchanged (roll-down) | 3.414 | 65.865 | 0.126 | +1.08% | +4.33% |
| +25bp | 3.664 | 63.581 | 0.126 | -2.41% | -9.65% |
| +50bp | 3.914 | 61.380 | 0.126 | -5.78% | -23.11% |
| 6m 2027-02-23 | -50bp | 2.890 | 71.332 | 0.251 | +9.64% | +19.27% |
| -25bp | 3.140 | 68.884 | 0.251 | +5.89% | +11.78% |
| Unchanged (roll-down) | 3.390 | 66.525 | 0.251 | +2.28% | +4.57% |
| +25bp | 3.640 | 64.252 | 0.251 | -1.19% | -2.39% |
| +50bp | 3.890 | 62.062 | 0.251 | -4.54% | -9.09% |
| 12m 2027-08-23 | -50bp | 2.835 | 72.645 | 0.500 | +12.03% | +12.03% |
| -25bp | 3.085 | 70.228 | 0.500 | +8.33% | +8.33% |
| Unchanged (roll-down) | 3.335 | 67.897 | 0.500 | +4.76% | +4.76% |
| +25bp | 3.585 | 65.648 | 0.500 | +1.32% | +1.32% |
| +50bp | 3.835 | 63.478 | 0.500 | -2.00% | -2.00% |