{
  "series_id": "drv.jgb.curve",
  "label": "日本国債イールドカーブ（全15年限・傾きの分類つき）",
  "layer": 2,
  "source_class": "DERIVED",
  "unit": "percent",
  "cadence": "daily",
  "algorithm": "jgb-curve@2",
  "code_sha256": "312d9fdae75e45719c608814760a0579d64debd5eecfe515339943b57d6bae7c",
  "code_commit": null,
  "rule_id": "jgb.curve.slope@1",
  "rule_definition": "当日の変化量（bp）を短期側（2年）と超長期側（30年）で比べる。水準の変化は両者の平均の符号、傾きの変化は Δ(30年) − Δ(2年) とする。いずれも 1.0bp 未満のとき UNCHANGED とする。",
  "rule_scope": "分類は当日の変化量を機械的に当てはめた結果である。なぜそう動いたか（政策期待・需給・財政）は述べない。それは解釈であり、当所の領分ではない（会則第8条）。記録として言えるのは『短期より超長期が上がった』までである。",
  "caveat": "本系列は財務省が公表する日次の確定値であり、日中の気配ではない。取引時間中の動きは反映されない。また財務省 国債金利情報の公表時刻を当所は確立できていないため、publisher_release_at は unknown である。",
  "tenors": [
    "1y",
    "2y",
    "3y",
    "4y",
    "5y",
    "6y",
    "7y",
    "8y",
    "9y",
    "10y",
    "15y",
    "20y",
    "25y",
    "30y",
    "40y"
  ],
  "spreads": {
    "s2_10": "10y − 2y（bp）",
    "s10_30": "30y − 10y（bp）",
    "s2_30": "30y − 2y（bp）",
    "s20_40": "40y − 20y（bp）",
    "s5_30": "30y − 5y（bp）"
  },
  "slope_labels": {
    "BEAR_STEEPENING": "上昇・スティープ化（短期より超長期が上がった）",
    "BEAR_FLATTENING": "上昇・フラット化（超長期より短期が上がった）",
    "BULL_STEEPENING": "低下・スティープ化（超長期より短期が下がった）",
    "BULL_FLATTENING": "低下・フラット化（短期より超長期が下がった）",
    "UNCHANGED": "閾値未満（1.0bp）"
  },
  "rise_rule_id": "jgb.rise_character@1",
  "rise_rule_definition": "前営業日比で30年の変化が 2.0bp 以上の日を対象に、比率 = Δ(2年) ÷ Δ(30年) を計算する。0.5以上を『2年追随』、0.15以上0.5未満を『部分追随』、0.15未満（逆方向を含む）を『超長期単独』とする。",
  "rise_rule_scope": "この分類は、カーブ全体が動いたのか、超長期に限った変化なのかを機械的に区別する目盛りである。なぜ追随した・しなかったか（政策期待・需給・財政）は述べない。それは解釈であり、当所の領分ではない（会則第8条）。",
  "rise_labels": {
    "ACCOMPANIED": "2年追随（比率0.5以上）",
    "PARTIAL": "部分追随（比率0.15以上0.5未満）",
    "LONE_LONG_END": "超長期単独（比率0.15未満。逆方向を含む）"
  },
  "rise_character": {
    "window_observations": 60,
    "classified_days": 34,
    "counts": {
      "ACCOMPANIED": 7,
      "PARTIAL": 12,
      "LONE_LONG_END": 15
    },
    "latest_classified": {
      "observation_date": "2026-08-28",
      "d30_bp": 4.6,
      "d2_bp": 2.3,
      "ratio": "0.50",
      "class": "ACCOMPANIED",
      "label": "2年追随（比率0.5以上）"
    }
  },
  "source": {
    "publisher": "財務省",
    "release": "国債金利情報",
    "url": "https://www.mof.go.jp/jgbs/reference/interest_rate/"
  },
  "extremes": {
    "10y": {
      "value": "2.943",
      "history_start": "1986-07-05",
      "observations": 9929,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "8.105",
        "date": "1990-09-28"
      },
      "previous_low": {
        "value": "-0.297",
        "date": "2016-07-27"
      }
    },
    "15y": {
      "value": "3.501",
      "history_start": "1991-08-30",
      "observations": 8588,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "6.546",
        "date": "1991-08-30"
      },
      "previous_low": {
        "value": "-0.150",
        "date": "2016-07-08"
      }
    },
    "1y": {
      "value": "1.502",
      "history_start": "1974-09-24",
      "observations": 12642,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "11.237",
        "date": "1975-02-12"
      },
      "previous_low": {
        "value": "-0.371",
        "date": "2016-07-27"
      }
    },
    "20y": {
      "value": "3.815",
      "history_start": "1986-12-01",
      "observations": 9816,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "7.749",
        "date": "1990-09-26"
      },
      "previous_low": {
        "value": "0.022",
        "date": "2016-07-06"
      }
    },
    "25y": {
      "value": "4.102",
      "history_start": "2004-03-22",
      "observations": 5495,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "4.112",
        "date": "2026-08-18"
      },
      "previous_low": {
        "value": "0.036",
        "date": "2016-07-06"
      }
    },
    "2y": {
      "value": "1.743",
      "history_start": "1974-09-24",
      "observations": 12929,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "12.145",
        "date": "1980-04-04"
      },
      "previous_low": {
        "value": "-0.372",
        "date": "2016-07-27"
      }
    },
    "30y": {
      "value": "4.092",
      "history_start": "1999-09-02",
      "observations": 6613,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "4.096",
        "date": "2026-08-18"
      },
      "previous_low": {
        "value": "0.042",
        "date": "2016-07-06"
      }
    },
    "3y": {
      "value": "1.894",
      "history_start": "1974-09-24",
      "observations": 13214,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "11.701",
        "date": "1980-04-09"
      },
      "previous_low": {
        "value": "-0.374",
        "date": "2016-07-27"
      }
    },
    "40y": {
      "value": "4.094",
      "history_start": "2007-11-06",
      "observations": 4601,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "4.103",
        "date": "2026-08-18"
      },
      "previous_low": {
        "value": "0.067",
        "date": "2016-07-06"
      }
    },
    "4y": {
      "value": "2.084",
      "history_start": "1974-09-24",
      "observations": 13290,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "10.562",
        "date": "1980-04-05"
      },
      "previous_low": {
        "value": "-0.382",
        "date": "2019-09-25"
      }
    },
    "5y": {
      "value": "2.233",
      "history_start": "1974-09-24",
      "observations": 13290,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "10.656",
        "date": "1980-04-09"
      },
      "previous_low": {
        "value": "-0.389",
        "date": "2019-09-25"
      }
    },
    "6y": {
      "value": "2.358",
      "history_start": "1974-09-24",
      "observations": 13290,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "10.639",
        "date": "1980-04-09"
      },
      "previous_low": {
        "value": "-0.405",
        "date": "2016-07-27"
      }
    },
    "7y": {
      "value": "2.507",
      "history_start": "1974-09-24",
      "observations": 13290,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "10.858",
        "date": "1980-04-14"
      },
      "previous_low": {
        "value": "-0.423",
        "date": "2016-07-27"
      }
    },
    "8y": {
      "value": "2.670",
      "history_start": "1974-09-24",
      "observations": 13290,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "10.940",
        "date": "1980-04-08"
      },
      "previous_low": {
        "value": "-0.393",
        "date": "2019-08-29"
      }
    },
    "9y": {
      "value": "2.801",
      "history_start": "1974-09-24",
      "observations": 13290,
      "is_record_high": false,
      "is_record_low": false,
      "previous_high": {
        "value": "10.670",
        "date": "1980-04-08"
      },
      "previous_low": {
        "value": "-0.350",
        "date": "2016-07-27"
      }
    }
  },
  "inversions": {
    "pairs": [
      {
        "pair": "25y-30y",
        "spread_bp": 1.0,
        "history_start": "2004-03-22",
        "observations": 5495,
        "days_inverted": 77,
        "share_pct": 1.4,
        "current_run_days": 44,
        "longest_run_days": 44,
        "is_longest": true
      }
    ],
    "checked_at": "2026-08-31"
  },
  "inversions_rule": {
    "definition": "隣り合う年限で利回りが逆転している区間を検出する。",
    "why": "利回り曲線は年限が長いほど高いのが通常である。隣り合う年限で逆転しているとき、そこに需給の歪みがある。",
    "no_cause": "当所は原因を述べない。逆転しているという事実と過去の頻度を記録する。",
    "run_note": "1日だけの逆転と何十日も続く逆転は意味が違う。現在の連続日数と記録開始以降の最長を併記する。"
  },
  "extremes_rule": {
    "definition": "最新の確定値が、保持している履歴の中で最高・最低かを比較する。",
    "not_all_time": "『史上最高』とは書かない。当所が保持するのはデータの開始日以降のみで、開始日は年限ごとに異なる（40年は2007年、10年は1986年）。『記録開始以降で最高』と書き、開始日を必ず添える。",
    "no_importance": "記録更新であることは述べるが、それが重要かは述べない（会則第15条）。",
    "confirmed_only": "判定は財務省の日次確定値のみで行う。取引時間中の気配で記録更新を主張しない。"
  },
  "latest": {
    "record_id": "drv.jgb.curve:2026-08-31:r0:cac7e8834890",
    "observation_date": "2026-08-31",
    "observation_precision": "date",
    "publisher_release_at": null,
    "release_at_method": "unknown",
    "release_note": "公表時刻を当所で確立できていない。推定値は入れない（会則第11条）",
    "source_first_seen_at": "2026-09-01T13:43:35.307Z",
    "ingested_at": "2026-09-01T13:43:35.310Z",
    "status": "ORIGINAL",
    "revision_seq": 0,
    "supersedes_record_id": null,
    "1y": "1.502",
    "2y": "1.743",
    "3y": "1.894",
    "4y": "2.084",
    "5y": "2.233",
    "6y": "2.358",
    "7y": "2.507",
    "8y": "2.670",
    "9y": "2.801",
    "10y": "2.943",
    "15y": "3.501",
    "20y": "3.815",
    "25y": "4.102",
    "30y": "4.092",
    "40y": "4.094",
    "s2_10": "120.0",
    "s10_30": "114.9",
    "s2_30": "234.9",
    "s20_40": "27.9",
    "s5_30": "185.9",
    "delta_bp": {
      "1y": 1.9,
      "2y": 2.4,
      "3y": 2.2,
      "4y": 2.2,
      "5y": 2.1,
      "6y": 1.3,
      "7y": 1.5,
      "8y": 1.4,
      "9y": 1.0,
      "10y": 1.3,
      "15y": 0.4,
      "20y": 0.9,
      "25y": 0.6,
      "30y": 0.8,
      "40y": 1.0
    },
    "slope_class": "BEAR_FLATTENING",
    "slope_label": "上昇・フラット化（超長期より短期が上がった）",
    "level_change_bp": 1.6,
    "slope_change_bp": -1.6,
    "threshold_bp": 1.0
  },
  "quotation_rule": "slope_class を『財政懸念』などの原因とともに引用しないこと。分類は変化量の当てはめであり、原因の特定ではない。",
  "output_sha256": "68d64f6431614659585d6dff216416657256ab04576865953ec8466103461370",
  "generated_at": "2026-09-01T13:43:35Z",
  "observations_recent": [
    {
      "record_id": "drv.jgb.curve:2026-08-31:r0:cac7e8834890",
      "observation_date": "2026-08-31",
      "observation_precision": "date",
      "publisher_release_at": null,
      "release_at_method": "unknown",
      "release_note": "公表時刻を当所で確立できていない。推定値は入れない（会則第11条）",
      "source_first_seen_at": "2026-09-01T13:43:35.307Z",
      "ingested_at": "2026-09-01T13:43:35.310Z",
      "status": "ORIGINAL",
      "revision_seq": 0,
      "supersedes_record_id": null,
      "1y": "1.502",
      "2y": "1.743",
      "3y": "1.894",
      "4y": "2.084",
      "5y": "2.233",
      "6y": "2.358",
      "7y": "2.507",
      "8y": "2.670",
      "9y": "2.801",
      "10y": "2.943",
      "15y": "3.501",
      "20y": "3.815",
      "25y": "4.102",
      "30y": "4.092",
      "40y": "4.094",
      "s2_10": "120.0",
      "s10_30": "114.9",
      "s2_30": "234.9",
      "s20_40": "27.9",
      "s5_30": "185.9",
      "delta_bp": {
        "1y": 1.9,
        "2y": 2.4,
        "3y": 2.2,
        "4y": 2.2,
        "5y": 2.1,
        "6y": 1.3,
        "7y": 1.5,
        "8y": 1.4,
        "9y": 1.0,
        "10y": 1.3,
        "15y": 0.4,
        "20y": 0.9,
        "25y": 0.6,
        "30y": 0.8,
        "40y": 1.0
      },
      "slope_class": "BEAR_FLATTENING",
      "slope_label": "上昇・フラット化（超長期より短期が上がった）",
      "level_change_bp": 1.6,
      "slope_change_bp": -1.6,
      "threshold_bp": 1.0
    },
    {
      "record_id": "drv.jgb.curve:2026-08-28:r0:0942aaeb3f4e",
      "observation_date": "2026-08-28",
      "observation_precision": "date",
      "publisher_release_at": null,
      "release_at_method": "unknown",
      "release_note": "公表時刻を当所で確立できていない。推定値は入れない（会則第11条）",
      "source_first_seen_at": "2026-09-01T13:43:35.307Z",
      "ingested_at": "2026-09-01T13:43:35.310Z",
      "status": "ORIGINAL",
      "revision_seq": 0,
      "supersedes_record_id": null,
      "1y": "1.483",
      "2y": "1.719",
      "3y": "1.872",
      "4y": "2.062",
      "5y": "2.212",
      "6y": "2.345",
      "7y": "2.492",
      "8y": "2.656",
      "9y": "2.791",
      "10y": "2.930",
      "15y": "3.497",
      "20y": "3.806",
      "25y": "4.096",
      "30y": "4.084",
      "40y": "4.084",
      "s2_10": "121.1",
      "s10_30": "115.4",
      "s2_30": "236.5",
      "s20_40": "27.8",
      "s5_30": "187.2",
      "delta_bp": {
        "1y": 2.2,
        "2y": 2.3,
        "3y": 2.6,
        "4y": 2.5,
        "5y": 3.0,
        "6y": 3.0,
        "7y": 4.0,
        "8y": 3.9,
        "9y": 3.6,
        "10y": 3.3,
        "15y": 3.9,
        "20y": 4.2,
        "25y": 4.4,
        "30y": 4.6,
        "40y": 4.1
      },
      "slope_class": "BEAR_STEEPENING",
      "slope_label": "上昇・スティープ化（短期より超長期が上がった）",
      "level_change_bp": 3.45,
      "slope_change_bp": 2.3,
      "threshold_bp": 1.0,
      "rise_class": "ACCOMPANIED",
      "rise_ratio": "0.50",
      "rise_label": "2年追随（比率0.5以上）"
    },
    {
      "record_id": "drv.jgb.curve:2026-08-27:r0:b75f6de989e1",
      "observation_date": "2026-08-27",
      "observation_precision": "date",
      "publisher_release_at": null,
      "release_at_method": "unknown",
      "release_note": "公表時刻を当所で確立できていない。推定値は入れない（会則第11条）",
      "source_first_seen_at": "2026-09-01T13:43:35.307Z",
      "ingested_at": "2026-09-01T13:43:35.310Z",
      "status": "ORIGINAL",
      "revision_seq": 0,
      "supersedes_record_id": null,
      "1y": "1.461",
      "2y": "1.696",
      "3y": "1.846",
      "4y": "2.037",
      "5y": "2.182",
      "6y": "2.315",
      "7y": "2.452",
      "8y": "2.617",
      "9y": "2.755",
      "10y": "2.897",
      "15y": "3.458",
      "20y": "3.764",
      "25y": "4.052",
      "30y": "4.038",
      "40y": "4.043",
      "s2_10": "120.1",
      "s10_30": "114.1",
      "s2_30": "234.2",
      "s20_40": "27.9",
      "s5_30": "185.6",
      "delta_bp": {
        "1y": 0.0,
        "2y": -0.1,
        "3y": 0.5,
        "4y": 1.0,
        "5y": 1.0,
        "6y": 1.0,
        "7y": 0.9,
        "8y": 0.5,
        "9y": 0.4,
        "10y": 0.5,
        "15y": 0.3,
        "20y": 0.8,
        "25y": 0.5,
        "30y": -0.1,
        "40y": -0.8
      },
      "slope_class": "UNCHANGED",
      "slope_label": "閾値未満（1.0bp）",
      "level_change_bp": -0.1,
      "slope_change_bp": 0.0,
      "threshold_bp": 1.0
    },
    {
      "record_id": "drv.jgb.curve:2026-08-26:r0:137e6ccdf45c",
      "observation_date": "2026-08-26",
      "observation_precision": "date",
      "publisher_release_at": null,
      "release_at_method": "unknown",
      "release_note": "公表時刻を当所で確立できていない。推定値は入れない（会則第11条）",
      "source_first_seen_at": "2026-09-01T13:43:35.307Z",
      "ingested_at": "2026-09-01T13:43:35.310Z",
      "status": "ORIGINAL",
      "revision_seq": 0,
      "supersedes_record_id": null,
      "1y": "1.461",
      "2y": "1.697",
      "3y": "1.841",
      "4y": "2.027",
      "5y": "2.172",
      "6y": "2.305",
      "7y": "2.443",
      "8y": "2.612",
      "9y": "2.751",
      "10y": "2.892",
      "15y": "3.455",
      "20y": "3.756",
      "25y": "4.047",
      "30y": "4.039",
      "40y": "4.051",
      "s2_10": "119.5",
      "s10_30": "114.7",
      "s2_30": "234.2",
      "s20_40": "29.5",
      "s5_30": "186.7",
      "delta_bp": {
        "1y": 1.4,
        "2y": 1.3,
        "3y": 0.5,
        "4y": 0.4,
        "5y": 0.5,
        "6y": 0.0,
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}