Official Result (MOF)
| Auction Date | 2026-04-07 |
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| Issue Date | 2026-04-08 |
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| Issue | JGB (30-Year) No. 90（new） |
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| Coupon (%) | 3.7% |
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| Maturity | 2056-03-20 |
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| Method | price conventional |
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| Offering | ¥600B |
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| Competitive Bids | ¥1.4T |
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| Accepted Amount | ¥450.4B |
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| Lowest Accepted Price | 99.85（3.710%） |
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| Weighted Avg Price | 100.03（3.697%） |
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| Allotment Ratio | — |
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| Non-competitive I | ¥148.9B |
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| Non-competitive II | ¥55.9B |
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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90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3月20日及び9月20日 |
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| Planned amount | ¥600B |
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| Bid deadline | 2026-04-07 11:50 |
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| Payment date | 2026-04-08 |
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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 | 3.66 | 3.36 | 2.92 | 4.04 | -0.75 |
| Tail (sen) | 18 | 12 | 26 | 9 | 75 | -0.42 |
| Non-competitive take-up | 31.3% | 30.1% | |
| Grade | C (score -0.17) | (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) | 1.3 | 0.8 |
Same-tenor Auction History