Official Result (MOF)
| Auction Date | 2026-01-28 |
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| Issue Date | 2026-01-29 |
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| Issue | JGB (40-Year) No. 18（reopen） |
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| Coupon (%) | 3.1% |
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| Maturity | 2065-03-20 |
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| Method | yield Dutch |
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| Offering | ¥400B |
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| Competitive Bids | ¥1.1T |
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| Accepted Amount | ¥399.8B |
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| Lowest Accepted Price | 87.27（3.720%） |
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| Weighted Avg Price | — |
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| Allotment Ratio | — |
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| Non-competitive I | — |
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| Non-competitive II | ¥38B |
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Source: https://www.mof.go.jp/jgbs/reference/appendix/jgb_historical_data.xls
Offering Terms (from MOF notice) documents →
| Official name | 利付国庫債券（40年）（第18回） |
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| Legal basis | 財政法（昭和22年法律第34号）第4条第1項並びに特別会計に関する法律（平成19年法律第23号）第46条第1項、第47条第1項及び第62条第1項 |
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| Coupon dates | 毎年3月20日及び9月20日 |
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| Planned amount | ¥400B |
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| Bid deadline | 2026-01-28 11:50 |
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| Payment date | 2026-01-29 |
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| Non-competitive II | held |
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| Price terms | 募入最高利回りを基礎として決定 |
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Derived Metrics calc auction-v1 / auction-v2
| This | Prev | avg (12) | min | max | z |
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| Bid/Cover | 2.76 | 2.59 | 2.42 | 2.13 | 2.92 | +1.32 |
| Tail (sen) | — | — | — | — | — | — |
| Non-competitive take-up | 8.7% | 8.4% | |
| Grade | A (score +1.32) | (z(B/C) − z(tail))/2 bucketed A(≥1)/B(≥0.3)/C/D(≤−0.3)/E(≤−1), vs last 12 same-tenor |
Same-tenor Auction History