{
  "spec_version": "3",
  "endpoint": "decisions",
  "stock_code": "8316",
  "company_name": "三井住友フィナンシャルグループ",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/8316/",
  "api_url": "/api/8316/decisions.json",
  "updated": "2026-08-05",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/8316/",
  "count": 7,
  "description": "Index of this company's management decisions. One decision = one endpoint: follow api_url for the full dossier (background, the decision itself, outcome, quoted primary sources and references).",
  "decisions": [
    {
      "slug": "smbc-formation-2001",
      "url": "/tse/8316/decisions/smbc-formation-2001/",
      "api_url": "/api/8316/decisions/smbc-formation-2001.json",
      "year": 2001,
      "month": null,
      "type": "merger",
      "tags": [
        "ma-merger"
      ],
      "title": "さくら銀行と住友銀行の合併・三井住友銀行の発足（2001年成立）",
      "subtitle": "旧財閥の壁を越えた大手行合併は、なぜ「住友主導」と評されたのか？",
      "status": "completed",
      "status_label": "成立"
    },
    {
      "slug": "nikko-cordial-2009",
      "url": "/tse/8316/decisions/nikko-cordial-2009/",
      "api_url": "/api/8316/decisions/nikko-cordial-2009.json",
      "year": 2009,
      "month": 5,
      "type": "acquisition",
      "tags": [
        "pf-diversify-related"
      ],
      "title": "日興コーディアル証券の買収——金融危機のシティから証券リテールを取り込む",
      "subtitle": "みずから純損失を抱えた三井住友は、なぜ危機のシティに5450億円を投じ、手薄な個人向け証券を丸ごと取りにいったのか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "promise-subsidiary-2011",
      "url": "/tse/8316/decisions/promise-subsidiary-2011/",
      "api_url": "/api/8316/decisions/promise-subsidiary-2011.json",
      "year": 2011,
      "month": 9,
      "type": "acquisition",
      "tags": [
        "pf-diversify-related",
        "cp-delisting"
      ],
      "title": "プロミスの完全子会社化——銀行が消費者金融を丸ごと抱えた再編",
      "subtitle": "過払い金返還と規制強化で縮む消費者金融最大手を、なぜ銀行が約2,100億円を投じて丸ごと抱え込んだのか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "btpn-indonesia-2013",
      "url": "/tse/8316/decisions/btpn-indonesia-2013/",
      "api_url": "/api/8316/decisions/btpn-indonesia-2013.json",
      "year": 2013,
      "month": 5,
      "type": "acquisition",
      "tags": [
        "ma-crossborder-out",
        "gl-entry",
        "ma-pmi"
      ],
      "title": "インドネシアBTPNの子会社化——40%出資から現地二行統合までの6年",
      "subtitle": "国内市場が成熟した邦銀は、なぜインドネシアの銀行に40%出資し、6年かけて子会社化したのか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "jefferies-alliance-2021",
      "url": "/tse/8316/decisions/jefferies-alliance-2021/",
      "api_url": "/api/8316/decisions/jefferies-alliance-2021.json",
      "year": 2021,
      "month": 7,
      "type": "alliance",
      "tags": [
        "cp-crossholding"
      ],
      "title": "米ジェフリーズとの戦略的資本・業務提携——海外投資銀行を自前でなく提携で補う",
      "subtitle": "自前で投資銀行を築くのでなく、なぜ米ジェフリーズに少数出資して提携で海外CIBを補ったのか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "vpbank-fecredit-2021",
      "url": "/tse/8316/decisions/vpbank-fecredit-2021/",
      "api_url": "/api/8316/decisions/vpbank-fecredit-2021.json",
      "year": 2021,
      "month": 4,
      "type": "new_business",
      "tags": [
        "ma-crossborder-out",
        "gl-entry"
      ],
      "title": "ベトナム・FE CreditとVPBankへの出資——消費者金融49%取得から地場大手銀行15%出資へ",
      "subtitle": "国内の超低金利で利ざやが細る銀行が、なぜベトナムの消費者金融最大手の株式半分と、地場有力銀行の15%を続けて買ったのか",
      "status": "implemented",
      "status_label": "実施"
    },
    {
      "slug": "smbc-nikko-market-manipulation-2022",
      "url": "/tse/8316/decisions/smbc-nikko-market-manipulation-2022/",
      "api_url": "/api/8316/decisions/smbc-nikko-market-manipulation-2022.json",
      "year": 2022,
      "month": 4,
      "type": "governance",
      "tags": [
        "tr-scandal",
        "gv-board"
      ],
      "title": "SMBC日興証券の相場操縦事件と、親会社・三井住友FGの引責・ガバナンス対応",
      "subtitle": "法人として起訴された子会社の不正に、持株会社はどこまで監督責任を負うのか",
      "status": "implemented",
      "status_label": "実施"
    }
  ],
  "by_type": [
    {
      "key": "acquisition",
      "count": 3,
      "url": "/api/8316/decisions/by-type/acquisition.json"
    },
    {
      "key": "alliance",
      "count": 1,
      "url": "/api/8316/decisions/by-type/alliance.json"
    },
    {
      "key": "governance",
      "count": 1,
      "url": "/api/8316/decisions/by-type/governance.json"
    },
    {
      "key": "merger",
      "count": 1,
      "url": "/api/8316/decisions/by-type/merger.json"
    },
    {
      "key": "new_business",
      "count": 1,
      "url": "/api/8316/decisions/by-type/new_business.json"
    }
  ],
  "by_decade": [
    {
      "key": "2000s",
      "count": 2,
      "url": "/api/8316/decisions/by-decade/2000s.json"
    },
    {
      "key": "2010s",
      "count": 2,
      "url": "/api/8316/decisions/by-decade/2010s.json"
    },
    {
      "key": "2020s",
      "count": 3,
      "url": "/api/8316/decisions/by-decade/2020s.json"
    }
  ]
}