Official Result (MOF)
| Auction Date | 2011-08-25 |
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| Issue Date | 2011-08-30 |
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| Issue | JGB (20-Year) No. 129（new） |
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| Coupon (%) | 1.8% |
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| Maturity | 2031-06-20 |
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| Method | price conventional |
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| Offering | ¥1.1T |
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| Competitive Bids | ¥3.1T |
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| Accepted Amount | ¥1T |
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| Lowest Accepted Price | 99.10（1.862%） |
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| Weighted Avg Price | 99.17（1.857%） |
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| Allotment Ratio | — |
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| Non-competitive I | ¥94.7B |
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| Non-competitive II | ¥150.8B |
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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（20年）（第129回） |
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| Legal basis | 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6月20日及び12月20日 |
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| Planned amount | ¥1.1T |
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| Bid deadline | 2011-08-25 12:00 |
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| Payment date | 2011-08-30 |
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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 | 3.12 | 2.98 | 3.45 | 2.45 | 4.56 | -0.43 |
| Tail (sen) | 7 | 8 | 13 | 2 | 26 | -0.83 |
| Non-competitive take-up | 19.6% | 9.1% | |
| Grade | C (score +0.20) | (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) | 0.5 | 0.6 |
Same-tenor Auction History