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  "domain": "derivatives",
  "title": "Equity volatility hedging by Japan corporates",
  "entry_type": "wiki_entry",
  "frontmatter": {
    "title": "Equity volatility hedging by Japan corporates",
    "aliases": [
      "equity-volatility-hedging-corporates-japan",
      "Japan corporate equity vol hedging",
      "Japan cross-shareholding variance hedge",
      "Japan ESO volatility hedging",
      "Japan M&A pre-announcement equity protection",
      "事業会社による株式ボラティリティ・ヘッジ",
      "Japan corporate equity derivatives end-user",
      "Japan equity OTC option dealer franchise"
    ],
    "domain": "derivatives",
    "type": null,
    "created": "2026-05-25",
    "last_updated": "2026-07-29",
    "last_tended": "2026-07-29",
    "review_by": "2027-01-29",
    "confidence": "likely",
    "tags": [
      "derivatives",
      "equity-vol",
      "corporate-hedging",
      "cross-shareholding",
      "ESO",
      "M&A",
      "OTC-options",
      "dealer-franchise"
    ],
    "status": "active",
    "canonical_anchor": null,
    "related": [],
    "note": null,
    "sources": [
      "https://www.jpx.co.jp/english/markets/derivatives/options/",
      "https://www.fsa.go.jp/en/",
      "https://www.fsa.go.jp/en/news/2023/policy_actions/index.html",
      "https://www.isda.org/",
      "https://www.jpx.co.jp/english/equities/listing/cg/",
      "https://www.jscc.co.jp/en/",
      "https://www.boj.or.jp/en/paym/market/"
    ]
  },
  "summary": "Japan corporates use equity-volatility hedging in four structurally distinct contexts, each with a different dealer-bank franchise relationship and a different regulatory boundary:",
  "headings": [
    "Equity volatility hedging by Japan corporates",
    "TL;DR",
    "Wiki route",
    "Why corporate equity-vol hedging matters",
    "The exposure",
    "The hedging problem",
    "The instrument set",
    "Regulatory boundary",
    "The exposure",
    "The hedging problem"
  ],
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