{
 "as_of": "2026-11-06",
 "cmr": "jp-cm-kg/TSE-PRIME/6857",
 "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# ADVANTEST CORPORATION (Prime Market: 6857) — research page\n\nAs of 2026-11-06 · jp-cm-kg · record version 1\n\n## Identity and listing\n\nThe issuer is ADVANTEST CORPORATION, listed on the Prime Market under ticker 6857. Its ISIN is JP3122400009 and its LEI is 353800EMK32PDKS9XR54. Its security type is Corporate, its sector is 3650 Electric Appliances, and its jurisdiction is Japan (EDINET domestic filer). Its segment is not on the record. Its listing status is listed, not halted.\n\n## The disclosure read\n\nThe record holds 32 filings on 22 filing days in the window 2025-11-06 to 2026-11-06. The filings comprise 10 ad hoc, 11 corporate news, 5 prospectus, 4 regulatory filing and 2 results. The median gap between filing days is 14 days. The latest filing is dated 2026-10-23 and is of type ad hoc, which is 14 days before the record date of 2026-11-06. The Prime Market median is 29.0 days for cadence gap, 10 filings and 70.0 days for latency across 1,557 issuers. The 3650 Electric Appliances sector median is 31.0 days for cadence gap, 9.0 filings and 91 days for latency across 228 issuers.\n\n## Auditor\n\nThe auditor of record is EY新日本有限責任監査法人. Its location is not on the record. The record does not carry auditor changes for this issuer.\n\n## Events and halts\n\nThe record does not carry listing, delisting, name change, domicile change or segment move dates, because no lifecycle type map exists for this register yet. The halt flag shows listed, not halted.\n\n## Orderability\n\nFor the client category Qualified Institutional Investors, the outcome is not determinable, because the rule states a product scope and the subject's record carries no instrument class to place within it. The rule version is acm-68000/jp/suitability-principle-fiea-article-40/r1, and the chapter is as of 2026-11-04.\n\n## Coverage\n\nThe issuer's own investor-relations page names 25 research houses: Aletheia Capital Ltd, BNP Paribas Securities (Asia) Limited, BofA Securities Japan, Citigroup Global Markets Japan, CLSA Securities Japan, Daiwa Securities Co. Ltd., Goldman Sachs Japan, Huatai Securities, Iwai Cosmo Securities Co., Ltd., Jefferies (Japan), JPMorgan Securities Japan, Macquarie Capital Securities (Japan), Marusan Securities Co.,Ltd., Mito Securities Co.,Ltd., Mizuho Securities, Morgan Stanley MUFG Research Japan, Nomura Securities, Okasan Securities, QUICK Corporate Valuation Research Center, Rakuten Securities, Inc., Sanford C. Bernstein (Hong Kong) Limited, SBI Securities Co., Ltd., SMBC Nikko Securities, Tokai Tokyo Intelligence Laboratory Co., Ltd. and UBS Securities Japan.\n\n## Open research\n\nNo openly published research notes were found for this issuer.\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 market's vintage is not sealed. No issuer years are sealed, the market earliest sealed date is not on the record, and the live record began date is not on the record.\n\n## Sources\n\n10 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.jpx.co.jp/english/markets/statistics-equities/misc/tvdivq0000001vg2-att/data_e.xlsx (identity.exchange)\n- https://mapping.gleif.org/api/v2/isin-lei/latest (identity.isin)\n- https://disclosure2dl.edinet-fsa.go.jp/searchdocument/codelist/Edinetcode.zip (identity.jurisdiction)\n- https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei)\n- https://mcp.jp-cm-kg.ai/events/TSE-PRIME/6857 (the disclosure lines)\n- https://www.jpx.co.jp/markets/equities/suspended/index.html (the halt flag)\n- https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100YKTA (the auditor)\n- https://mcp.jp-cm-kg.ai/book/aio.json (the orderability chapter)\n- https://www.advantest.com/en/investors/shares-and-corporate-bonds/analyst-coverage/ (coverage)\n- https://mcp.jp-cm-kg.ai/record/TSE-PRIME/6857 (the record)\n",
 "market": "JP",
 "node": "jp-cm-kg",
 "numbers": {
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   "live_record_began": null,
   "node_history_from": null,
   "node_years_sealed": [],
   "note": "the JP vintage is not sealed; the record is the live record as of 2026-11-06",
   "record_version": 1,
   "sealed": false
  },
  "auditor": {
   "auditor": {
    "read_by": "EDINET XBRL-to-CSV facts (API v2 type=5, 有価証券報告書 docTypeCode 120) — element jpcrp_cor:AuditFirm1Consolidated",
    "read_date": "2026-11-06",
    "read_date_basis": "the record version as_of",
    "source": "https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100YKTA",
    "state": "sourced",
    "value": "EY新日本有限責任監査法人"
   },
   "auditor_firm_id": {
    "market": "JP",
    "state": "not_on_record"
   },
   "auditor_location": {
    "market": "JP",
    "state": "not_on_record"
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   "changes": {
    "market": "JP",
    "reason": "no lifecycle type map for this register yet (SHELF-01: us and ca first)",
    "state": "not_on_record"
   }
  },
  "cmr": "jp-cm-kg/TSE-PRIME/6857",
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     "analyst": "Steven Liu",
     "house": "Aletheia Capital Ltd",
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     "analyst": "Alex Chang",
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     "analyst": "Yu Yoshida",
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     "analyst": "Shuhei Nakamura",
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     "analyst": "Leping Huang",
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    "basis": "one live read per instrument class, halt state and client category on this market; this issuer's group",
    "chapter": "https://mcp.jp-cm-kg.ai/book/aio.json",
    "door": "https://mcp.jp-cm-kg.ai/mcp",
    "tool": "get_orderability"
   },
   "rule_version": "acm-68000/jp/suitability-principle-fiea-article-40/r1",
   "section": "jp.aio.v6"
  },
  "record": {
   "as_of": "2026-11-06",
   "url": "https://mcp.jp-cm-kg.ai/record/TSE-PRIME/6857",
   "version": 1
  },
  "schema": "research-numbers v0.1 (USR-01, 2026-11-11)",
  "status": {
   "read_date": "2026-11-08",
   "source": "https://www.jpx.co.jp/markets/equities/suspended/index.html",
   "value": "listed, not halted"
  }
 },
 "numbers_hash": "sha256:7f437686fcb7d5a90f3b066cd39e763861b5c064baef53833967816cbc6d5b2f",
 "path": "/jp/TSE-PRIME/6857",
 "schema": "research-page v0.1 (USR-02, 2026-11-11)",
 "sections": [
  {
   "id": "identity",
   "text": "The issuer is ADVANTEST CORPORATION, listed on the Prime Market under ticker 6857. Its ISIN is JP3122400009 and its LEI is 353800EMK32PDKS9XR54. Its security type is Corporate, its sector is 3650 Electric Appliances, and its jurisdiction is Japan (EDINET domestic filer). Its segment is not on the record. Its listing status is listed, not halted.",
   "title": "Identity and listing"
  },
  {
   "id": "disclosure",
   "text": "The record holds 32 filings on 22 filing days in the window 2025-11-06 to 2026-11-06. The filings comprise 10 ad hoc, 11 corporate news, 5 prospectus, 4 regulatory filing and 2 results. The median gap between filing days is 14 days. The latest filing is dated 2026-10-23 and is of type ad hoc, which is 14 days before the record date of 2026-11-06. The Prime Market median is 29.0 days for cadence gap, 10 filings and 70.0 days for latency across 1,557 issuers. The 3650 Electric Appliances sector median is 31.0 days for cadence gap, 9.0 filings and 91 days for latency across 228 issuers.",
   "title": "The disclosure read"
  },
  {
   "id": "auditor",
   "text": "The auditor of record is EY新日本有限責任監査法人. Its location is not on the record. The record does not carry auditor changes for this issuer.",
   "title": "Auditor"
  },
  {
   "id": "events",
   "text": "The record does not carry listing, delisting, name change, domicile change or segment move dates, because no lifecycle type map exists for this register yet. The halt flag shows listed, not halted.",
   "title": "Events and halts"
  },
  {
   "id": "orderability",
   "text": "For the client category Qualified Institutional Investors, the outcome is not determinable, because the rule states a product scope and the subject's record carries no instrument class to place within it. The rule version is acm-68000/jp/suitability-principle-fiea-article-40/r1, and the chapter is as of 2026-11-04.",
   "title": "Orderability"
  },
  {
   "id": "coverage",
   "text": "The issuer's own investor-relations page names 25 research houses: Aletheia Capital Ltd, BNP Paribas Securities (Asia) Limited, BofA Securities Japan, Citigroup Global Markets Japan, CLSA Securities Japan, Daiwa Securities Co. Ltd., Goldman Sachs Japan, Huatai Securities, Iwai Cosmo Securities Co., Ltd., Jefferies (Japan), JPMorgan Securities Japan, Macquarie Capital Securities (Japan), Marusan Securities Co.,Ltd., Mito Securities Co.,Ltd., Mizuho Securities, Morgan Stanley MUFG Research Japan, Nomura Securities, Okasan Securities, QUICK Corporate Valuation Research Center, Rakuten Securities, Inc., Sanford C. Bernstein (Hong Kong) Limited, SBI Securities Co., Ltd., SMBC Nikko Securities, Tokai Tokyo Intelligence Laboratory Co., Ltd. and UBS Securities Japan.",
   "title": "Coverage"
  },
  {
   "id": "open_research",
   "text": "No openly published research notes were found for this issuer.",
   "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 market's vintage is not sealed. No issuer years are sealed, the market earliest sealed date is not on the record, and the live record began date is not on the record.",
   "title": "As-of depth"
  },
  {
   "id": "sources",
   "text": "10 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.jpx.co.jp/english/markets/statistics-equities/misc/tvdivq0000001vg2-att/data_e.xlsx"
  },
  {
   "for": "identity.isin",
   "source": "https://mapping.gleif.org/api/v2/isin-lei/latest"
  },
  {
   "for": "identity.jurisdiction",
   "source": "https://disclosure2dl.edinet-fsa.go.jp/searchdocument/codelist/Edinetcode.zip"
  },
  {
   "for": "identity.lei",
   "source": "https://mapping.gleif.org/api/v2/isin-lei/latest/download"
  },
  {
   "for": "the disclosure lines",
   "source": "https://mcp.jp-cm-kg.ai/events/TSE-PRIME/6857"
  },
  {
   "for": "the halt flag",
   "source": "https://www.jpx.co.jp/markets/equities/suspended/index.html"
  },
  {
   "for": "the auditor",
   "source": "https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100YKTA"
  },
  {
   "for": "the orderability chapter",
   "source": "https://mcp.jp-cm-kg.ai/book/aio.json"
  },
  {
   "for": "coverage",
   "source": "https://www.advantest.com/en/investors/shares-and-corporate-bonds/analyst-coverage/"
  },
  {
   "for": "the record",
   "source": "https://mcp.jp-cm-kg.ai/record/TSE-PRIME/6857"
  }
 ],
 "title": "ADVANTEST CORPORATION (6857) — research page",
 "writer": {
  "by": "Claude through the platform account, Haiku class; one pass; checked against the numbers",
  "engine": "claude-haiku-5-5"
 }
}