Official Result (MOF)
| Auction Date | 1983-05-19 |
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| Issue Date | 1983-06-06 |
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| Issue | JGB (4-Year) No. 12（new） |
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| Coupon (%) | 7% |
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| Maturity | 1987-06-20 |
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| Method | price conventional |
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| Offering | ¥250B |
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| Competitive Bids | ¥364.6B |
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| Accepted Amount | ¥256.5B |
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| Lowest Accepted Price | 98.56（7.463%） |
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| Weighted Avg Price | 98.63（7.439%） |
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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 | 1.42 | 3.28 | 2.58 | 1.39 | 6.94 | -0.66 |
| Tail (sen) | 7 | 14 | 9 | 4 | 21 | -0.37 |
| Non-competitive take-up | 0.0% | 0.0% | |
| Grade | C (score -0.15) | (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) | 2.4 | 4.6 |
Same-tenor Auction History