Official Result (MOF)
| Auction Date | 1990-01-30 |
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| Issue Date | 1990-02-20 |
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| Issue | JGB (10-Year) No. 128（new） |
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| Coupon (%) | 6.2% |
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| Maturity | 2000-03-20 |
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| Method | price conventional |
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| Offering | ¥600B |
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| Competitive Bids | ¥1.7T |
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| Accepted Amount | ¥236.9B |
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| Lowest Accepted Price | 100.05（6.191%） |
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| Weighted Avg Price | 100.17（6.172%） |
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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 |
|---|
| Bid/Cover | 7.22 | 3.64 | 3.84 | 2.86 | 5.35 | +4.27 |
| Tail (sen) | 12 | 32 | 16 | 4 | 32 | -0.52 |
| Non-competitive take-up | 0.0% | 0.0% | |
| Grade | A (score +2.39) | (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) | 1.9 | 5.4 |
Same-tenor Auction History
| Auction Date | Issue | Bid/Cover | Tail (sen) | Avg Yield (%) |
|---|
| 1990-01-30 | JGB (10-Year) No. 128 | 7.22 | 12 | 6.172 |
| 1990-01-10 | JGB (10-Year) No. 127 | 3.64 | 32 | 6.095 |
| 1989-11-29 | JGB (10-Year) No. 126 | 3.70 | 6 | 5.306 |
| 1989-10-25 | JGB (10-Year) No. 125 | 3.21 | 18 | 5.163 |
| 1989-09-28 | JGB (10-Year) No. 124 | 3.17 | 18 | 5.099 |
| 1989-08-24 | JGB (10-Year) No. 123 | 4.62 | 4 | 4.894 |
| 1989-07-27 | JGB (10-Year) No. 123 | 4.43 | 17 | 4.919 |
| 1989-06-28 | JGB (10-Year) No. 122 | 2.86 | 15 | 5.174 |
| 1989-06-01 | JGB (10-Year) No. 121 | 2.94 | 25 | 5.088 |
| 1989-04-26 | JGB (10-Year) No. 119 | 4.45 | 15 | 4.837 |
| 1989-04-05 | JGB (10-Year) No. 119 | 5.35 | 11 | 4.813 |