Official Result (MOF)
| Auction Date | 1991-08-22 |
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| Issue Date | 1991-09-20 |
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| Issue | JGB (10-Year) No. 143（new） |
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| Coupon (%) | 6.3% |
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| Maturity | 2001-09-20 |
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| Method | price conventional |
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| Offering | ¥800B |
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| Competitive Bids | ¥1.9T |
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| Accepted Amount | ¥472.5B |
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| Lowest Accepted Price | 99.90（6.316%） |
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| Weighted Avg Price | 100.00（6.300%） |
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| Allotment Ratio | — |
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| Non-competitive I | — |
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| Non-competitive II | — |
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Source: https://www.mof.go.jp/jgbs/reference/appendix/jgb_historical_data.xls
Derived Metrics calc auction-v1 / auction-v2
| This | Prev | avg (12) | min | max | z |
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| Bid/Cover | 4.08 | 4.25 | 3.41 | 2.30 | 5.63 | +0.67 |
| Tail (sen) | 10 | 3 | 13 | 3 | 26 | -0.39 |
| Non-competitive take-up | 0.0% | 0.0% | |
| Grade | B (score +0.53) | (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) | 1.6 | 0.5 |
Same-tenor Auction History