Official Result (MOF)
| Auction Date | 2025-06-05 |
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| Issue Date | 2025-06-06 |
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| Issue | JGB (30-Year) No. 86（reopen） |
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| Coupon (%) | 2.4% |
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| Maturity | 2055-03-20 |
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| Method | price conventional |
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| Offering | ¥800B |
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| Competitive Bids | ¥1.8T |
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| Accepted Amount | ¥604.8B |
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| Lowest Accepted Price | 91.45（2.938%） |
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| Weighted Avg Price | 91.94（2.904%） |
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| Allotment Ratio | — |
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| Non-competitive I | ¥194.7B |
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| Non-competitive II | ¥77.2B |
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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（30年）（第86回） |
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| Legal basis | 財政法（昭和22年法律第34号）第4条第1項及び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 |
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| Coupon dates | 毎年3月20日及び9月20日 |
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| Planned amount | ¥800B |
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| Bid deadline | 2025-06-05 11:50 |
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| Payment date | 2025-06-06 |
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| Non-competitive II | held |
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| Price terms | — |
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Derived Metrics calc auction-v1 / auction-v2
| This | Prev | avg (12) | min | max | z |
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| Bid/Cover | 2.92 | 3.07 | 3.39 | 2.96 | 3.74 | -1.85 |
| Tail (sen) | 49 | 30 | 18 | 2 | 75 | +1.67 |
| Non-competitive take-up | 31.0% | 29.2% | |
| Grade | E (score -1.76) | (z(B/C) − z(tail))/2 bucketed A(≥1)/B(≥0.3)/C/D(≤−0.3)/E(≤−1), vs last 12 same-tenor |
| Yield tail (bp) | 3.4 | 2.0 |
Same-tenor Auction History