{
  "spec_version": "4",
  "endpoint": "history",
  "stock_code": "9003",
  "company_name": "相鉄ホールディングス",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/9003/decisions/",
  "api_url": "/api/9003/history.json",
  "updated": "2026-10-01",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/9003/decisions/",
  "source": {
    "long_term": {
      "primary": [
        "有価証券報告書",
        "会社年鑑（1986年版）",
        "会社年鑑（1976年版）半期合算",
        "会社年鑑（1963年版）半期合算",
        "会社年鑑（1967年版）半期合算",
        "会社年鑑（1971年版）半期合算",
        "上場会社総覧 昭和31年版 半期合算",
        "上場会社総覧 昭和34年版 半期合算",
        "上場会社総覧 昭和31年版・昭和34年版 半期合算"
      ],
      "extraction": "EDINET の XBRL、kabupro 掲載の旧有価証券報告書、会社年鑑・社史等からの転記",
      "row_field": "reference",
      "caveat": "創業期から現在までを 1 本に繋いだ長期系列のため、年代により出所・単位・連結範囲が変わる。行ごとの reference / unit / consolidation を必ず参照すること"
    }
  },
  "title": "相鉄ホールディングスの歴史概略",
  "eras": [
    {
      "title": "相模鉄道の創立と茅ヶ崎〜橋本間の全通",
      "start_year": 1917,
      "end_year": 1942,
      "phase": "founding"
    },
    {
      "title": "神中鉄道の吸収合併と不動産・バス事業への多角化",
      "start_year": 1943,
      "end_year": 1972,
      "phase": "transformation"
    },
    {
      "title": "相鉄ジョイナスの開業と砂利・石油事業の譲渡",
      "start_year": 1973,
      "end_year": 2008,
      "phase": "stable_growth"
    },
    {
      "title": "持株会社体制への移行と相鉄新横浜線の開通",
      "start_year": 2009,
      "end_year": 2026,
      "phase": "transformation"
    }
  ],
  "timelineLead": "1917年に神奈川県茅ヶ崎町で創立された相模鉄道が起源。\n1973年に横浜駅西口で相鉄ジョイナスを開業し、2019年と2023年に相鉄新横浜線でJR線・東急線との相互直通運転を始めた。横浜を地盤に鉄道・不動産・ホテルを営むグループである。",
  "summary": {
    "description": "相鉄ホールディングス（旧相模鉄道）の歴史。1917年、岡崎久次郎氏が茅ヶ崎で相模鉄道を創立し茅ヶ崎〜橋本間の鉄道を敷設。神中鉄道の合併、相鉄ジョイナス、相鉄新横浜線の直通までの沿革と経緯を執筆。"
  },
  "long_term": [
    {
      "year": 1950,
      "month": 3,
      "company_name": "相鉄ホールディングス",
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    },
    {
      "year": 1951,
      "month": 3,
      "company_name": "相鉄ホールディングス",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
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    },
    {
      "year": 1952,
      "month": 3,
      "company_name": "相鉄ホールディングス",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
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      "sales": null,
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    },
    {
      "year": 1953,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 5.78,
      "operating_profit_jp": "営業利益",
      "operating_profit": 0.48,
      "ordinary_profit_jp": null,
      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
      "net_profit": 0.3,
      "net_margin": 5.19,
      "employees": null,
      "reference": "上場会社総覧 昭和31年版 半期合算"
    },
    {
      "year": 1954,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 7.32,
      "operating_profit_jp": "営業利益",
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      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
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      "reference": "上場会社総覧 昭和31年版 半期合算"
    },
    {
      "year": 1955,
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      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
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      "operating_profit_jp": "営業利益",
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      "net_profit_jp": "当期純利益",
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      "reference": "上場会社総覧 昭和31年版 半期合算"
    },
    {
      "year": 1956,
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      "company_name": "相模鉄道",
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      "unit": "億円",
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      "operating_profit_jp": "営業利益",
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      "ordinary_profit": null,
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      "reference": "上場会社総覧 昭和31年版・昭和34年版 半期合算"
    },
    {
      "year": 1957,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 10.8,
      "operating_profit_jp": "営業利益",
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      "reference": "上場会社総覧 昭和34年版 半期合算"
    },
    {
      "year": 1958,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 12.7,
      "operating_profit_jp": "営業利益",
      "operating_profit": 1.59,
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      "reference": "上場会社総覧 昭和34年版 半期合算"
    },
    {
      "year": 1959,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 14.84,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": null,
      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
      "net_profit": 1.15,
      "net_margin": 7.749,
      "employees": null,
      "reference": "会社年鑑（1963年版）半期合算"
    },
    {
      "year": 1960,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 18.92,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": null,
      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
      "net_profit": 2.15,
      "net_margin": 11.363,
      "employees": null,
      "reference": "会社年鑑（1963年版）半期合算"
    },
    {
      "year": 1961,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 22.86,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": null,
      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
      "net_profit": 2.82,
      "net_margin": 12.335,
      "employees": null,
      "reference": "会社年鑑（1963年版）半期合算"
    },
    {
      "year": 1962,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 32.12,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": null,
      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
      "net_profit": 3.09,
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      "employees": null,
      "reference": "会社年鑑（1963年版）半期合算"
    },
    {
      "year": 1963,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 41.84,
      "operating_profit_jp": null,
      "operating_profit": null,
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      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
      "net_profit": 4.4,
      "net_margin": 10.516,
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      "reference": "会社年鑑（1967年版）半期合算"
    },
    {
      "year": 1964,
      "month": 3,
      "company_name": "相模鉄道",
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      "accounting_standard": "JGAAP",
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      "operating_profit_jp": null,
      "operating_profit": null,
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    },
    {
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      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 65.06,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": null,
      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
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      "net_margin": 5.948,
      "employees": null,
      "reference": "会社年鑑（1967年版）半期合算"
    },
    {
      "year": 1966,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 75.65,
      "operating_profit_jp": "営業利益",
      "operating_profit": 12.31,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 7.38,
      "net_profit_jp": "当期純利益",
      "net_profit": 4.47,
      "net_margin": 5.908,
      "employees": null,
      "reference": "会社年鑑（1967年版）半期合算"
    },
    {
      "year": 1967,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 88.63,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": null,
      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
      "net_profit": 5.32,
      "net_margin": 6.002,
      "employees": null,
      "reference": "会社年鑑（1971年版）半期合算"
    },
    {
      "year": 1968,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 109.09,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": null,
      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
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      "net_margin": 5.71,
      "employees": null,
      "reference": "会社年鑑（1971年版）半期合算"
    },
    {
      "year": 1969,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 123.5,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": null,
      "ordinary_profit": null,
      "net_profit_jp": "当期純利益",
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      "reference": "会社年鑑（1971年版）半期合算"
    },
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      "year": 1970,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 143.13,
      "operating_profit_jp": "営業利益",
      "operating_profit": 23.88,
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      "ordinary_profit": 11.16,
      "net_profit_jp": "当期純利益",
      "net_profit": 6.91,
      "net_margin": 4.827,
      "employees": null,
      "reference": "会社年鑑（1971年版）半期合算"
    },
    {
      "year": 1971,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 171.72,
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      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 11.42,
      "net_profit_jp": "当期純利益",
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      "reference": "会社年鑑（1976年版）半期合算"
    },
    {
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      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 202.14,
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      "operating_profit": null,
      "ordinary_profit_jp": "経常利益",
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      "net_profit_jp": "当期純利益",
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      "reference": "会社年鑑（1976年版）半期合算"
    },
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      "year": 1973,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 216.15,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 19.11,
      "net_profit_jp": "当期純利益",
      "net_profit": 11.99,
      "net_margin": 5.547,
      "employees": null,
      "reference": "会社年鑑（1976年版）半期合算"
    },
    {
      "year": 1974,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 248.74,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 22.23,
      "net_profit_jp": "当期純利益",
      "net_profit": 14.52,
      "net_margin": 5.837,
      "employees": null,
      "reference": "会社年鑑（1976年版）半期合算"
    },
    {
      "year": 1975,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 328.91,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 22.55,
      "net_profit_jp": "当期純利益",
      "net_profit": 12.3,
      "net_margin": 3.739,
      "employees": null,
      "reference": "会社年鑑（1976年版）半期合算"
    },
    {
      "year": 1976,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 331.29,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 24.96,
      "net_profit_jp": "当期純利益",
      "net_profit": 11.61,
      "net_margin": 3.504,
      "employees": null,
      "reference": "会社年鑑（1986年版）"
    },
    {
      "year": 1977,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 420.21,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 19.78,
      "net_profit_jp": "当期純利益",
      "net_profit": 12.39,
      "net_margin": 2.948,
      "employees": null,
      "reference": "会社年鑑（1986年版）"
    },
    {
      "year": 1978,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 488.08,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 30.95,
      "net_profit_jp": "当期純利益",
      "net_profit": 13.4,
      "net_margin": 2.745,
      "employees": null,
      "reference": "会社年鑑（1986年版）"
    },
    {
      "year": 1979,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
      "accounting_standard": "JGAAP",
      "unit": "億円",
      "sales_jp": "売上高",
      "sales": 502.29,
      "operating_profit_jp": null,
      "operating_profit": null,
      "ordinary_profit_jp": "経常利益",
      "ordinary_profit": 19.53,
      "net_profit_jp": "当期純利益",
      "net_profit": 13.58,
      "net_margin": 2.703,
      "employees": null,
      "reference": "会社年鑑（1986年版）"
    },
    {
      "year": 1980,
      "month": 3,
      "company_name": "相模鉄道",
      "consolidation": "単体",
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      "reference": "有価証券報告書"
    },
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      "reference": "有価証券報告書"
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      "company_name": "相鉄ホールディングス",
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      "unit": "億円",
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      "reference": "有価証券報告書"
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}
