{
 "as_of": "2026-11-08",
 "cmr": "us-cm-kg/NYSE/ETB",
 "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# Eaton Vance Tax-Managed Buy-Write Income Fund (NYSE: ETB) — research page\n\nAs of 2026-11-08 · us-cm-kg · record version 1\n\n## Identity and listing\n\nThe issuer is Eaton Vance Tax-Managed Buy-Write Income Fund, listed on NYSE under ticker ETB, with ISIN US27828X1000 and LEI 549300PR0H5PW7NXEV58. Its security type is non-operating entity type (other). 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 11 filings in the twelve months to 2026-11-08, across 11 filing days: 1 agm_egm, 1 prospectus and 9 regulatory_filing. The median gap between filing days is 17.5 days. The latest filing is dated 2026-10-26, is of type regulatory_filing, and is 13 days before the record date. On NYSE the median cadence gap is 6.0 days, the median filings count is 64.0 and the median latency is 4.0 days, across 3256 issuers. The sector peer median is not on the record for this market.\n\n## Auditor\n\nThe auditor is not on the record, because the latest annual report cover carries no dei:AuditorName tag. The auditor's location is not on the record. The record holds no auditor changes.\n\n## Events and halts\n\nThe record holds no listing, delisting or name change events. The domicile change is not on the record, as EDGAR states no dated change of state of incorporation on a filing line. The segment move is not on the record, as exchange tier transfers are not EDGAR filings. The halt flag reads listed, not halted.\n\n## Orderability\n\nThe orderability outcome is not determinable. The chapter's orderability section carries no client categories, so the outcome cannot name its client category. The rule version is acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1, and the chapter is as of 2026-11-04.\n\n## Coverage\n\nNo research houses were found on the issuer's investor-relations pages read, so the count is 0.\n\n## Open research\n\nNo openly published research notes were 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 issuer is held in sealed years 2021, 2022, 2023, 2024, 2025 and 2026. The market's earliest sealed date is 2021-01-04. The live record began on 2026-09-12.\n\n## Sources\n\n8 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.sec.gov/files/company_tickers_exchange.json (identity.exchange)\n- https://mapping.gleif.org/api/v2/isin-lei/latest (identity.isin)\n- https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei)\n- https://data.sec.gov/submissions/CIK0001308927.json (identity.name)\n- https://mcp.us-cm-kg.ai/events/NYSE/ETB (the disclosure lines)\n- https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts (the halt flag)\n- https://mcp.us-cm-kg.ai/book/aio.json (the orderability chapter)\n- https://mcp.us-cm-kg.ai/record/NYSE/ETB (the record)\n",
 "market": "US",
 "node": "us-cm-kg",
 "numbers": {
  "as_of_depth": {
   "issuer_years_sealed": [
    "2021",
    "2022",
    "2023",
    "2024",
    "2025",
    "2026"
   ],
   "live_record_began": "2026-09-12",
   "node_history_from": "2021-01-04",
   "node_years_sealed": [
    "2021",
    "2022",
    "2023",
    "2024",
    "2025",
    "2026"
   ],
   "record_version": 1,
   "sealed": true
  },
  "auditor": {
   "auditor": {
    "market": "US",
    "reason": "no dei:AuditorName tag on the latest annual report cover (foreign private issuers and older filings carry none)",
    "state": "not_on_record"
   },
   "auditor_firm_id": {
    "market": "US",
    "state": "not_on_record"
   },
   "auditor_location": {
    "market": "US",
    "state": "not_on_record"
   },
   "changes": []
  },
  "cmr": "us-cm-kg/NYSE/ETB",
  "coverage": {
   "count": 0,
   "houses": [],
   "pages_checked": [],
   "read_by": "Perplexity sonar (search) · page read by this rail",
   "read_date": "2026-11-11",
   "since": null,
   "state": "none_found"
  },
  "disclosure": {
   "against": {
    "exchange": {
     "issuers": 3256,
     "median_cadence_gap_days": 6,
     "median_filings": 64,
     "median_latency_days": 4,
     "name": "NYSE"
    },
    "sector": {
     "market": "US",
     "state": "not_on_record"
    }
   },
   "by_type": {
    "agm_egm": 1,
    "prospectus": 1,
    "regulatory_filing": 9
   },
   "cadence_median_gap_days": 17.5,
   "filing_days": 11,
   "filings": 11,
   "latency_days": 13,
   "latest": [
    {
     "category": "40-17G",
     "date": "2026-10-26",
     "source": "https://www.sec.gov/Archives/edgar/data/1308927/000113322826013571/evfbf-efp28279_4017g.htm",
     "title": "40-17G — EATON VANCE FIDELITY BOND FILING - 40-17G",
     "type": "regulatory_filing"
    },
    {
     "category": "N-CSRS",
     "date": "2026-08-27",
     "source": "https://www.sec.gov/Archives/edgar/data/1308927/000119312526370931/d169642dncsrs.htm",
     "title": "N-CSRS — EATON VANCE TAX-MANAGED BUY-WRITE INCOME FUND",
     "type": "regulatory_filing"
    },
    {
     "category": "NPORT-P",
     "date": "2026-08-24",
     "source": "https://www.sec.gov/Archives/edgar/data/1308927/000141036826084633/xslFormNPORT-P_X01/primary_doc.xml",
     "title": "NPORT-P",
     "type": "regulatory_filing"
    },
    {
     "category": "N-PX",
     "date": "2026-08-03",
     "source": "https://www.sec.gov/Archives/edgar/data/1308927/000114036126030888/xslN-PX_X01/primary_doc.xml",
     "title": "N-PX",
     "type": "regulatory_filing"
    },
    {
     "category": "NPORT-P",
     "date": "2026-05-29",
     "source": "https://www.sec.gov/Archives/edgar/data/1308927/000141036826056100/xslFormNPORT-P_X01/primary_doc.xml",
     "title": "NPORT-P",
     "type": "regulatory_filing"
    }
   ],
   "latest_filing_date": "2026-10-26",
   "read": "the node's event lines (list_events_since), as get_filings serves them",
   "source": "https://mcp.us-cm-kg.ai/events/NYSE/ETB",
   "window": {
    "from": "2025-11-08",
    "to": "2026-11-08"
   }
  },
  "identity": {
   "exchange": {
    "read_by": "EDGAR company_tickers_exchange.json (SEC list of exchange-listed filers)",
    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://www.sec.gov/files/company_tickers_exchange.json",
    "state": "sourced",
    "value": "NYSE"
   },
   "isin": {
    "read_by": "GLEIF ISIN-to-LEI mapping file (ISINs mapped to the LEI)",
    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://mapping.gleif.org/api/v2/isin-lei/latest",
    "state": "sourced",
    "value": "US27828X1000"
   },
   "jurisdiction": {
    "market": "US",
    "state": "not_on_record"
   },
   "lei": {
    "read_by": "GLEIF ISIN-to-LEI mapping file (daily), LEI by exact ISIN",
    "read_date": "2026-11-08",
    "read_date_basis": "the field",
    "source": "https://mapping.gleif.org/api/v2/isin-lei/latest/download (ISIN US27828X1000)",
    "state": "sourced",
    "value": "549300PR0H5PW7NXEV58"
   },
   "name": {
    "read_by": "EDGAR submissions API (issuer header as filed)",
    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://data.sec.gov/submissions/CIK0001308927.json",
    "state": "sourced",
    "value": "Eaton Vance Tax-Managed Buy-Write Income Fund"
   },
   "sector": {
    "market": "US",
    "state": "not_on_record"
   },
   "security_type": {
    "read_by": "EDGAR submissions API (issuer header as filed)",
    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://data.sec.gov/submissions/CIK0001308927.json",
    "state": "sourced",
    "value": "Non-operating entity type (other)"
   },
   "segment": {
    "market": "US",
    "state": "not_on_record"
   },
   "ticker": {
    "read_by": "EDGAR company_tickers_exchange.json (SEC list of exchange-listed filers)",
    "read_date": "2026-11-08",
    "read_date_basis": "the record version as_of",
    "source": "https://www.sec.gov/files/company_tickers_exchange.json",
    "state": "sourced",
    "value": "ETB"
   },
   "website": {
    "market": "US",
    "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": [],
   "domicile_change": {
    "market": "US",
    "reason": "EDGAR states no dated change of state of incorporation on a filing line",
    "state": "not_on_record"
   },
   "listing": [],
   "name_change": [],
   "segment_move": {
    "market": "US",
    "reason": "the exchanges' tier transfers are not EDGAR filings",
    "state": "not_on_record"
   }
  },
  "market": "US",
  "node": "us-cm-kg",
  "numbers_hash": "sha256:b27cfe75dd70162c1aae8f6b56b204dbd785e7e4b57b8a5fc83fe6a2f47aa129",
  "open_research": {
   "read_date": "2026-11-11",
   "rows": [],
   "state": "none_found"
  },
  "orderability": {
   "chapter_as_of": "2026-11-04",
   "client_categories": [],
   "determinable": false,
   "read": {
    "chapter": "https://mcp.us-cm-kg.ai/book/aio.json",
    "door": "https://mcp.us-cm-kg.ai/mcp",
    "tool": "get_orderability"
   },
   "reason": "the chapter's orderability section carries no client_categories: the outcome cannot name its client category",
   "rule_version": "acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1",
   "section": "us.aio.v8"
  },
  "record": {
   "as_of": "2026-11-08",
   "url": "https://mcp.us-cm-kg.ai/record/NYSE/ETB",
   "version": 1
  },
  "schema": "research-numbers v0.1 (USR-01, 2026-11-11)",
  "status": {
   "read_date": "2026-11-08",
   "source": "https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts",
   "value": "listed, not halted"
  }
 },
 "numbers_hash": "sha256:b27cfe75dd70162c1aae8f6b56b204dbd785e7e4b57b8a5fc83fe6a2f47aa129",
 "path": "/us/NYSE/ETB",
 "schema": "research-page v0.1 (USR-02, 2026-11-11)",
 "sections": [
  {
   "id": "identity",
   "text": "The issuer is Eaton Vance Tax-Managed Buy-Write Income Fund, listed on NYSE under ticker ETB, with ISIN US27828X1000 and LEI 549300PR0H5PW7NXEV58. Its security type is non-operating entity type (other). 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 11 filings in the twelve months to 2026-11-08, across 11 filing days: 1 agm_egm, 1 prospectus and 9 regulatory_filing. The median gap between filing days is 17.5 days. The latest filing is dated 2026-10-26, is of type regulatory_filing, and is 13 days before the record date. On NYSE the median cadence gap is 6.0 days, the median filings count is 64.0 and the median latency is 4.0 days, across 3256 issuers. The sector peer median is not on the record for this market.",
   "title": "The disclosure read"
  },
  {
   "id": "auditor",
   "text": "The auditor is not on the record, because the latest annual report cover carries no dei:AuditorName tag. The auditor's location is not on the record. The record holds no auditor changes.",
   "title": "Auditor"
  },
  {
   "id": "events",
   "text": "The record holds no listing, delisting or name change events. The domicile change is not on the record, as EDGAR states no dated change of state of incorporation on a filing line. The segment move is not on the record, as exchange tier transfers are not EDGAR filings. The halt flag reads listed, not halted.",
   "title": "Events and halts"
  },
  {
   "id": "orderability",
   "text": "The orderability outcome is not determinable. The chapter's orderability section carries no client categories, so the outcome cannot name its client category. The rule version is acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1, and the chapter is as of 2026-11-04.",
   "title": "Orderability"
  },
  {
   "id": "coverage",
   "text": "No research houses were found on the issuer's investor-relations pages read, so the count is 0.",
   "title": "Coverage"
  },
  {
   "id": "open_research",
   "text": "No openly published research notes were 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 issuer is held in sealed years 2021, 2022, 2023, 2024, 2025 and 2026. The market's earliest sealed date is 2021-01-04. The live record began on 2026-09-12.",
   "title": "As-of depth"
  },
  {
   "id": "sources",
   "text": "8 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.sec.gov/files/company_tickers_exchange.json"
  },
  {
   "for": "identity.isin",
   "source": "https://mapping.gleif.org/api/v2/isin-lei/latest"
  },
  {
   "for": "identity.lei",
   "source": "https://mapping.gleif.org/api/v2/isin-lei/latest/download"
  },
  {
   "for": "identity.name",
   "source": "https://data.sec.gov/submissions/CIK0001308927.json"
  },
  {
   "for": "the disclosure lines",
   "source": "https://mcp.us-cm-kg.ai/events/NYSE/ETB"
  },
  {
   "for": "the halt flag",
   "source": "https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts"
  },
  {
   "for": "the orderability chapter",
   "source": "https://mcp.us-cm-kg.ai/book/aio.json"
  },
  {
   "for": "the record",
   "source": "https://mcp.us-cm-kg.ai/record/NYSE/ETB"
  }
 ],
 "title": "Eaton Vance Tax-Managed Buy-Write Income Fund (ETB) — research page",
 "writer": {
  "by": "Claude through the platform account, Haiku class; one pass; checked against the numbers",
  "engine": "claude-haiku-5-5"
 }
}