bonds / 20Y / JGB (20-Year) No. 122
Bond Information
| Name | JGB (20-Year) No. 122 |
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| ISIN | — |
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| Issue # | 122 |
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| Coupon (%) | 1.8% semi-annual |
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| Issue Date | 2010-10-26 |
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| Maturity | 2030-09-20 （Remaining 3.9y） |
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| Outstanding | ¥1.7T （2026-03-31・MOF） |
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| Total issued | ¥1.7T （annual report, FY-end） |
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| Statutory basis | 特例借換前倒財投 |
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| SLF usage | last 30d —／ total ¥32.4B（last 2026-03-06・BOJ） |
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| BOJ Holding | ¥1.1T（66.0%）（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 | 1.800 % |
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| Compound Yield | 1.7986 % |
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| Accrued Interest | 0.187397 (38 days) per 100 |
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| Settlement Amount | — |
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| Modified Duration | 3.74 |
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| Macaulay Duration | 3.78 |
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| DV01 | — |
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| Convexity | 16.1 |
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Estimates based on the input price.
Cashflow Schedule
| Date | Type | Amount (per 100) |
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| 2027-03-20 | coupon | 0.900 |
| 2027-09-20 | coupon | 0.900 |
| 2028-03-20 | coupon | 0.900 |
| …（3 omitted）… |
| 2030-03-20 | coupon | 0.900 |
| 2030-09-20 | coupon + redemption | 100.900 |
Related Auctions
| Auction Date | | Bid/Cover | Tail (sen) | Avg Yield (%) |
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| 2010-10-21 | new | 4.41 | 4 | 1.770 |
Horizon total return settle 2026-10-28 ・ CMT 2026-10-23
| CMT interpolated (rem 3.9y) | 2.106 % → ref. price 98.854 |
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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 | 1.570 | 100.805 | 0.454 | +2.43% | +9.71% |
| -25bp | 1.820 | 99.923 | 0.454 | +1.54% | +6.15% |
| Unchanged (roll-down) | 2.070 | 99.049 | 0.454 | +0.66% | +2.62% |
| +25bp | 2.320 | 98.185 | 0.454 | -0.22% | -0.87% |
| +50bp | 2.570 | 97.329 | 0.454 | -1.08% | -4.33% |
| 6m 2027-04-28 | -50bp | 1.535 | 100.861 | 0.905 | +2.94% | +5.88% |
| -25bp | 1.785 | 100.035 | 0.905 | +2.11% | +4.21% |
| Unchanged (roll-down) | 2.035 | 99.218 | 0.905 | +1.28% | +2.56% |
| +25bp | 2.285 | 98.408 | 0.905 | +0.46% | +0.93% |
| +50bp | 2.535 | 97.606 | 0.905 | -0.35% | -0.69% |
| 12m 2027-10-28 | -50bp | 1.468 | 100.934 | 1.800 | +3.92% | +3.92% |
| -25bp | 1.718 | 100.226 | 1.800 | +3.20% | +3.20% |
| Unchanged (roll-down) | 1.968 | 99.524 | 1.800 | +2.49% | +2.49% |
| +25bp | 2.218 | 98.828 | 1.800 | +1.79% | +1.79% |
| +50bp | 2.468 | 98.137 | 1.800 | +1.09% | +1.09% |