{ "spec_version": "3", "endpoint": "financials-longterm", "stock_code": "9002", "company_name": "西武鉄道", "content_lang": "ja", "meta_lang": "en", "canonical_url": "https://the-shashi.com/tse/9002/financials/", "api_url": "/api/9002/financials-longterm.json", "updated": "2026-08-18", "license": "© 2026 Yutaka Sugiura. All rights reserved.", "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/9002/financials/", "source": { "primary": [ "会社年鑑（1986年版）", "会社年鑑（1976年版）半期合算", "有価証券報告書（第155期）", "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（1956年版）半期合算", "会社年鑑（1963年版）半期合算", "上場会社総覧（1959年版）半期合算", "上場会社総覧（1961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" }, "history": [ { "year": 1949, "month": 3, "company_name": "西武鉄道", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1950, "month": 3, "company_name": "西武鉄道", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1951, "month": 3, "company_name": "西武鉄道", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { "year": 1952, "month": 3, "company_name": "西武鉄道", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": null, "sales": null, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": null, "ordinary_profit": null, "net_profit_jp": null, "net_profit": null, "net_margin": null, "employees": null, "reference": null }, { 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}, { "year": 1974, "month": 3, "company_name": "西武鉄道", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 440, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 29, "net_profit_jp": "当期純利益", "net_profit": 22, "net_margin": 5, "employees": null, "reference": "会社年鑑（1976年版）半期合算" }, { "year": 1975, "month": 3, "company_name": "西武鉄道", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 518, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", "ordinary_profit": 27, "net_profit_jp": "当期純利益", "net_profit": 18, "net_margin": 3.474, "employees": null, "reference": "会社年鑑（1976年版）半期合算" }, { "year": 1976, "month": 3, "company_name": "西武鉄道", "consolidation": "単体", "accounting_standard": "JGAAP", "unit": "億円", "sales_jp": "売上高", "sales": 577, "operating_profit_jp": null, "operating_profit": null, "ordinary_profit_jp": "経常利益", 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