Official Result (MOF)
| Auction Date | 2008-04-15 |
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| Issue Date | 2008-04-18 |
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| Issue | JGB (30-Year) No. 28（new） |
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| Coupon (%) | 2.5% |
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| Maturity | 2038-03-20 |
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| Method | price conventional |
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| Offering | ¥600B |
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| Competitive Bids | ¥2.1T |
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| Accepted Amount | ¥549.1B |
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| Lowest Accepted Price | 100.75（2.456%） |
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| Weighted Avg Price | 100.86（2.450%） |
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| Allotment Ratio | — |
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| Non-competitive I | ¥51.8B |
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| Non-competitive II | ¥57.2B |
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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28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 |
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| Coupon dates | 毎年3月20日及び9月20日 |
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| Planned amount | ¥600B |
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| Bid deadline | 2008-04-15 12:00 |
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| Payment date | 2008-04-18 |
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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 | 3.92 | 3.82 | 3.31 | 2.48 | 4.26 | +1.00 |
| Tail (sen) | 11 | 7 | 9 | 4 | 20 | — |
| Non-competitive take-up | 16.6% | 9.1% | |
| Grade | A (score +1.00) | (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) | 0.6 | 0.3 |
Same-tenor Auction History