bonds / 20Y / JGB (20-Year) No. 131
Bond Information
| Name | JGB (20-Year) No. 131 |
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| ISIN | — |
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| Issue # | 131 |
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| Coupon (%) | 1.7% semi-annual |
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| Issue Date | 2011-11-28 |
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| Maturity | 2031-09-20 （Remaining 5.1y） |
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| Outstanding | ¥1.4T （2026-03-31・MOF） |
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| Total issued | ¥1.4T （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 ¥21.4B（last 2026-06-22・BOJ） |
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| BOJ Holding | ¥767.6B（53.1%）（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 | 1.700 % |
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| Compound Yield | 1.6976 % |
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| Accrued Interest | 0.726575 (156 days) per 100 |
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| Settlement Amount | — |
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| Modified Duration | 4.81 |
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| Macaulay Duration | 4.85 |
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| DV01 | — |
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| Convexity | 26.3 |
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Estimates based on the input price.
Cashflow Schedule
| Date | Type | Amount (per 100) |
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| 2026-09-20 | coupon | 0.850 |
| 2027-03-20 | coupon | 0.850 |
| 2027-09-20 | coupon | 0.850 |
| …（6 omitted）… |
| 2031-03-20 | coupon | 0.850 |
| 2031-09-20 | coupon + redemption | 100.850 |
Related Auctions
| Auction Date | | Bid/Cover | Tail (sen) | Avg Yield (%) |
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| 2011-11-22 | new | 2.48 | 10 | 1.703 |
Horizon total return settle 2026-08-23 ・ CMT 2026-08-20
| CMT interpolated (rem 5.1y) | 2.138 % → ref. price 97.892 |
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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 | 1.605 | 100.436 | -0.428 | +2.15% | +8.58% |
| -25bp | 1.855 | 99.284 | -0.428 | +0.98% | +3.91% |
| Unchanged (roll-down) | 2.105 | 98.147 | -0.428 | -0.18% | -0.70% |
| +25bp | 2.355 | 97.024 | -0.428 | -1.31% | -5.26% |
| +50bp | 2.605 | 95.916 | -0.428 | -2.44% | -9.75% |
| 6m 2027-02-23 | -50bp | 1.573 | 100.556 | 0.850 | +3.56% | +7.13% |
| -25bp | 1.823 | 99.459 | 0.850 | +2.45% | +4.90% |
| Unchanged (roll-down) | 2.073 | 98.377 | 0.850 | +1.35% | +2.71% |
| +25bp | 2.323 | 97.308 | 0.850 | +0.27% | +0.54% |
| +50bp | 2.573 | 96.252 | 0.850 | -0.80% | -1.60% |
| 12m 2027-08-23 | -50bp | 1.510 | 100.739 | 1.700 | +4.61% | +4.61% |
| -25bp | 1.760 | 99.755 | 1.700 | +3.61% | +3.61% |
| Unchanged (roll-down) | 2.010 | 98.781 | 1.700 | +2.63% | +2.63% |
| +25bp | 2.260 | 97.819 | 1.700 | +1.65% | +1.65% |
| +50bp | 2.510 | 96.867 | 1.700 | +0.69% | +0.69% |