The page is the record's research on the issuer — no analyst, no rating, no view. # ADVANTEST CORPORATION (Prime Market: 6857) — research page As of 2026-11-06 · jp-cm-kg · record version 1 ## Identity and listing 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. ## The disclosure read 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. ## Auditor 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. ## Events and halts 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. ## Orderability 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. ## Coverage 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. ## Open research No openly published research notes were found for this issuer. ## Licensed 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. ## As-of depth 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. ## Sources 10 source pages are named on this page; every value above carries its own source page and read date in the numbers. - https://www.jpx.co.jp/english/markets/statistics-equities/misc/tvdivq0000001vg2-att/data_e.xlsx (identity.exchange) - https://mapping.gleif.org/api/v2/isin-lei/latest (identity.isin) - https://disclosure2dl.edinet-fsa.go.jp/searchdocument/codelist/Edinetcode.zip (identity.jurisdiction) - https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei) - https://mcp.jp-cm-kg.ai/events/TSE-PRIME/6857 (the disclosure lines) - https://www.jpx.co.jp/markets/equities/suspended/index.html (the halt flag) - https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100YKTA (the auditor) - https://mcp.jp-cm-kg.ai/book/aio.json (the orderability chapter) - https://www.advantest.com/en/investors/shares-and-corporate-bonds/analyst-coverage/ (coverage) - https://mcp.jp-cm-kg.ai/record/TSE-PRIME/6857 (the record) --- Allooloo Technologies Corp. · https://getresearch.ai/jp/TSE-PRIME/6857 · public-record only · the same page signed and receipted: get_research at https://mcp.getresearch.ai/mcp