{
 "as_of": "2026-11-10",
 "cmr": "bm-cm-kg/XBDA/BMG9618E1075",
 "fence": "The page is the record's research on the issuer — no analyst, no rating, no view.",
 "markdown": "The page is the record's research on the issuer — no analyst, no rating, no view.\n\n# White Mountains Insurance Group Ltd (Bermuda Stock Exchange: BMG9618E1075) — research page\n\nAs of 2026-11-10 · bm-cm-kg · record version 1\n\n## Identity and listing\n\nThe issuer is White Mountains Insurance Group Ltd, listed on the Bermuda Stock Exchange under ticker BMG9618E1075, with ISIN BMG9618E1075 and LEI 549300N3FL068JERBG02. Its security type, segment, sector and jurisdiction are not on the record. Its listing status is listed, not halted.\n\n## The disclosure read\n\nThe record holds 0 filings in the window 2025-11-10 to 2026-11-10, across 0 filing days. The median gap between filing days is not on the record, and no latest filing date or filing type is on the record. The exchange peer group of 27 issuers has a median cadence gap of not on the record, a median of 0 filings and a median latency of not on the record. The sector peer median is not on the record for this market.\n\n## Auditor\n\nThe auditor of record is not on the record, and neither is its location. Auditor changes are not on the record, because the market's register has no lifecycle type map yet.\n\n## Events and halts\n\nThe listing, delisting, name change, domicile change and segment move lines are not on the record, because the market's register has no lifecycle type map yet. The halt flag shows listed, not halted.\n\n## Orderability\n\nThe outcome is not determinable for any client category. The chapter carries no current ACM-68000 register revision for this market, so the rule that would name the outcome is not on the record. The chapter is as of 2026-11-04.\n\n## Coverage\n\nNo research house was found on the issuer's own investor-relations page, so the count is 0.\n\n## Open research\n\nNo openly published research note was found, so the count is 0.\n\n## Licensed\n\nLicensed research: none loaded. A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded.\n\n## As-of depth\n\nThe vintage of this market is not sealed. No sealed years for the issuer are on the record, and the market's earliest sealed date and the start of the live record are not on the record.\n\n## Sources\n\n6 source pages are named on this page; every value above carries its own source page and read date in the numbers.\n\n- https://www.bsx.com/listed-securities (identity.exchange)\n- https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei)\n- https://mcp.bm-cm-kg.ai/events/XBDA/BMG9618E1075 (the disclosure lines)\n- https://www.bsx.com/listed-securities?CoStatus=3 (the halt flag)\n- https://mcp.bm-cm-kg.ai/book/aio.json (the orderability chapter)\n- https://mcp.bm-cm-kg.ai/record/XBDA/BMG9618E1075 (the record)\n",
 "market": "BM",
 "node": "bm-cm-kg",
 "numbers": {
  "as_of_depth": {
   "issuer_years_sealed": [],
   "live_record_began": null,
   "node_history_from": null,
   "node_years_sealed": [],
   "note": "the BM vintage is not sealed; the record is the live record as of 2026-11-10",
   "record_version": 1,
   "sealed": false
  },
  "auditor": {
   "auditor": {
    "market": "BM",
    "state": "not_on_record"
   },
   "auditor_firm_id": {
    "market": "BM",
    "state": "not_on_record"
   },
   "auditor_location": {
    "market": "BM",
    "state": "not_on_record"
   },
   "changes": {
    "market": "BM",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   }
  },
  "cmr": "bm-cm-kg/XBDA/BMG9618E1075",
  "coverage": {
   "count": 0,
   "houses": [],
   "pages_checked": [],
   "read_by": "Perplexity sonar (search) · page read by this rail",
   "read_date": "2026-11-12",
   "since": null,
   "state": "none_found"
  },
  "disclosure": {
   "against": {
    "exchange": {
     "issuers": 27,
     "median_cadence_gap_days": null,
     "median_filings": 0,
     "median_latency_days": null,
     "name": "Bermuda Stock Exchange"
    },
    "sector": {
     "market": "BM",
     "state": "not_on_record"
    }
   },
   "by_type": {},
   "cadence_median_gap_days": null,
   "filing_days": 0,
   "filings": 0,
   "latency_days": null,
   "latest": [],
   "latest_filing_date": null,
   "note": "no disclosure line on the record for this issuer in the window",
   "read": "the node's event lines (list_events_since), as get_filings serves them",
   "source": "https://mcp.bm-cm-kg.ai/events/XBDA/BMG9618E1075",
   "window": {
    "from": "2025-11-10",
    "to": "2026-11-10"
   }
  },
  "identity": {
   "exchange": {
    "read_by": "BSX Listed Securities view (CoListingType in 1,2,3,8; CoStatus=All) + each company page (ISIN / Ticker / CUSIP / Status); LEI from GLEIF api.gleif.org lei-records?filter[isin]= (exact ISIN mapping; not on BSX pages)",
    "read_date": "2026-11-10",
    "read_date_basis": "the record version as_of",
    "source": "https://www.bsx.com/listed-securities",
    "state": "sourced",
    "value": "Bermuda Stock Exchange"
   },
   "isin": {
    "read_by": "BSX Listed Securities view (CoListingType in 1,2,3,8; CoStatus=All) + each company page (ISIN / Ticker / CUSIP / Status); LEI from GLEIF api.gleif.org lei-records?filter[isin]= (exact ISIN mapping; not on BSX pages)",
    "read_date": "2026-11-10",
    "read_date_basis": "the record version as_of",
    "source": "https://www.bsx.com/listed-securities",
    "state": "sourced",
    "value": "BMG9618E1075"
   },
   "jurisdiction": {
    "market": "BM",
    "state": "not_on_record"
   },
   "lei": {
    "read_by": "GLEIF ISIN-to-LEI mapping file (daily), LEI by exact ISIN",
    "read_date": "2026-11-12",
    "read_date_basis": "the field",
    "source": "https://mapping.gleif.org/api/v2/isin-lei/latest/download (ISIN BMG9618E1075)",
    "state": "sourced",
    "value": "549300N3FL068JERBG02"
   },
   "name": {
    "read_by": "BSX Listed Securities view (CoListingType in 1,2,3,8; CoStatus=All) + each company page (ISIN / Ticker / CUSIP / Status); LEI from GLEIF api.gleif.org lei-records?filter[isin]= (exact ISIN mapping; not on BSX pages)",
    "read_date": "2026-11-10",
    "read_date_basis": "the record version as_of",
    "source": "https://www.bsx.com/listed-securities",
    "state": "sourced",
    "value": "White Mountains Insurance Group Ltd"
   },
   "sector": {
    "market": "BM",
    "state": "not_on_record"
   },
   "security_type": {
    "market": "BM",
    "state": "not_on_record"
   },
   "segment": {
    "market": "BM",
    "state": "not_on_record"
   },
   "ticker": {
    "read_by": "BSX Listed Securities view (CoListingType in 1,2,3,8; CoStatus=All) + each company page (ISIN / Ticker / CUSIP / Status); LEI from GLEIF api.gleif.org lei-records?filter[isin]= (exact ISIN mapping; not on BSX pages)",
    "read_date": "2026-11-10",
    "read_date_basis": "the record version as_of",
    "source": "https://www.bsx.com/listed-securities",
    "state": "sourced",
    "value": "BMG9618E1075"
   },
   "website": {
    "market": "BM",
    "state": "not_on_record"
   }
  },
  "licensed": {
   "columns": [
    "licensor",
    "entitlement",
    "title",
    "date",
    "source"
   ],
   "rows": [],
   "rule": "A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded."
  },
  "lifecycle": {
   "delisting": {
    "market": "BM",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   },
   "domicile_change": {
    "market": "BM",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   },
   "listing": {
    "market": "BM",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   },
   "name_change": {
    "market": "BM",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   },
   "segment_move": {
    "market": "BM",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   }
  },
  "market": "BM",
  "node": "bm-cm-kg",
  "numbers_hash": "sha256:1acbfd18bd7c64379bc253f9491e302e1d4d8bace26212200111c76a82179872",
  "open_research": {
   "read_date": "2026-11-12",
   "rows": [],
   "state": "none_found"
  },
  "orderability": {
   "chapter_as_of": "2026-11-04",
   "client_categories": [],
   "determinable": false,
   "read": {
    "chapter": "https://mcp.bm-cm-kg.ai/book/aio.json",
    "door": "https://mcp.bm-cm-kg.ai/mcp",
    "tool": "get_orderability"
   },
   "reason": "the chapter carries no current ACM-68000 register revision for this market: the outcome cannot name its rule",
   "rule_version": null,
   "section": "bm.aio.v5"
  },
  "record": {
   "as_of": "2026-11-10",
   "url": "https://mcp.bm-cm-kg.ai/record/XBDA/BMG9618E1075",
   "version": 1
  },
  "schema": "research-numbers v0.1 (USR-01, 2026-11-11)",
  "status": {
   "read_date": "2026-11-12",
   "source": "https://www.bsx.com/listed-securities?CoStatus=3",
   "value": "listed, not halted"
  }
 },
 "numbers_hash": "sha256:1acbfd18bd7c64379bc253f9491e302e1d4d8bace26212200111c76a82179872",
 "path": "/bm/XBDA/BMG9618E1075",
 "schema": "research-page v0.1 (USR-02, 2026-11-11)",
 "sections": [
  {
   "id": "identity",
   "text": "The issuer is White Mountains Insurance Group Ltd, listed on the Bermuda Stock Exchange under ticker BMG9618E1075, with ISIN BMG9618E1075 and LEI 549300N3FL068JERBG02. Its security type, segment, sector and jurisdiction are not on the record. Its listing status is listed, not halted.",
   "title": "Identity and listing"
  },
  {
   "id": "disclosure",
   "text": "The record holds 0 filings in the window 2025-11-10 to 2026-11-10, across 0 filing days. The median gap between filing days is not on the record, and no latest filing date or filing type is on the record. The exchange peer group of 27 issuers has a median cadence gap of not on the record, a median of 0 filings and a median latency of not on the record. The sector peer median is not on the record for this market.",
   "title": "The disclosure read"
  },
  {
   "id": "auditor",
   "text": "The auditor of record is not on the record, and neither is its location. Auditor changes are not on the record, because the market's register has no lifecycle type map yet.",
   "title": "Auditor"
  },
  {
   "id": "events",
   "text": "The listing, delisting, name change, domicile change and segment move lines are not on the record, because the market's register has no lifecycle type map yet. The halt flag shows listed, not halted.",
   "title": "Events and halts"
  },
  {
   "id": "orderability",
   "text": "The outcome is not determinable for any client category. The chapter carries no current ACM-68000 register revision for this market, so the rule that would name the outcome is not on the record. The chapter is as of 2026-11-04.",
   "title": "Orderability"
  },
  {
   "id": "coverage",
   "text": "No research house was found on the issuer's own investor-relations page, so the count is 0.",
   "title": "Coverage"
  },
  {
   "id": "open_research",
   "text": "No openly published research note was found, so the count is 0.",
   "title": "Open research"
  },
  {
   "id": "licensed",
   "text": "Licensed research: none loaded. A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded.",
   "title": "Licensed"
  },
  {
   "id": "depth",
   "text": "The vintage of this market is not sealed. No sealed years for the issuer are on the record, and the market's earliest sealed date and the start of the live record are not on the record.",
   "title": "As-of depth"
  },
  {
   "id": "sources",
   "text": "6 source pages are named on this page; every value above carries its own source page and read date in the numbers.",
   "title": "Sources"
  }
 ],
 "sources": [
  {
   "for": "identity.exchange",
   "source": "https://www.bsx.com/listed-securities"
  },
  {
   "for": "identity.lei",
   "source": "https://mapping.gleif.org/api/v2/isin-lei/latest/download"
  },
  {
   "for": "the disclosure lines",
   "source": "https://mcp.bm-cm-kg.ai/events/XBDA/BMG9618E1075"
  },
  {
   "for": "the halt flag",
   "source": "https://www.bsx.com/listed-securities?CoStatus=3"
  },
  {
   "for": "the orderability chapter",
   "source": "https://mcp.bm-cm-kg.ai/book/aio.json"
  },
  {
   "for": "the record",
   "source": "https://mcp.bm-cm-kg.ai/record/XBDA/BMG9618E1075"
  }
 ],
 "title": "White Mountains Insurance Group Ltd (BMG9618E1075) — research page",
 "writer": {
  "by": "Claude through the platform account, Haiku class; one pass; checked against the numbers",
  "engine": "claude-haiku-5-5"
 }
}