ADVANTEST CORPORATION (6857) — research page
JP · jp-cm-kg/TSE-PRIME/6857 · as of 2026-11-06
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.
| field | value | source · read date |
|---|---|---|
| name | ADVANTEST CORPORATION | source · 2026-11-06 |
| exchange | Prime Market | source · 2026-11-06 |
| ticker | 6857 | source · 2026-11-06 |
| ISIN | JP3122400009 | source · 2026-11-06 |
| LEI | 353800EMK32PDKS9XR54 | source · 2026-11-08 |
| security type | Corporate | source · 2026-11-06 |
| segment | not on the record | |
| sector | 3650 Electric Appliances | source · 2026-11-06 |
| jurisdiction | Japan (EDINET domestic filer) | source · 2026-11-06 |
| status | listed, not halted | source · 2026-11-08 |
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.
| filings | median gap between filing days | days from latest filing to as-of | |
|---|---|---|---|
| this issuer | 32 | 14 | 14 |
| exchange median: Prime Market (1557 issuers) | 10 | 29 | 70 |
| sector median: 3650 Electric Appliances (228 issuers) | 9 | 31 | 91 |
| date | type | category | filing |
|---|---|---|---|
| 2026-10-23 | ad_hoc | 臨時報告書 (extraordinary report) | 臨時報告書 |
| 2026-10-15 | corporate_news | 自己株券買付状況報告書 (share buy-back status report) | 自己株券買付状況報告書（法２４条の６第１項に基づくもの） |
| 2026-08-17 | corporate_news | 自己株券買付状況報告書 (share buy-back status report) | 自己株券買付状況報告書（法２４条の６第１項に基づくもの） |
| 2026-07-31 | prospectus | 有価証券届出書 (securities registration statement) | 有価証券届出書（参照方式） |
| 2026-07-31 | ad_hoc | 臨時報告書 (extraordinary report) | 臨時報告書 |
window 2025-11-06 to 2026-11-06 · the node's disclosure lines, as get_filings serves them
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.
| client category | outcome |
|---|---|
| Qualified Institutional Investors | not determinable: the rule states a product scope and the subject's record carries no instrument class to place within it |
rule acm-68000/jp/suitability-principle-fiea-article-40/r1 · chapter as of 2026-11-04 · the full outcome: get_orderability
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.
| research house | analyst | source · read date |
|---|---|---|
| Aletheia Capital Ltd | Steven Liu | issuer page · 2026-11-12 |
| BNP Paribas Securities (Asia) Limited | Alex Chang | issuer page · 2026-11-12 |
| BofA Securities Japan | Mikio Hirakawa | issuer page · 2026-11-12 |
| Citigroup Global Markets Japan | Masahiro Shibano | issuer page · 2026-11-12 |
| CLSA Securities Japan | Yu Yoshida | issuer page · 2026-11-12 |
| Daiwa Securities Co. Ltd. | Takeshi Fukuyama | issuer page · 2026-11-12 |
| Goldman Sachs Japan | Shuhei Nakamura | issuer page · 2026-11-12 |
| Huatai Securities | Leping Huang | issuer page · 2026-11-12 |
| Iwai Cosmo Securities Co., Ltd. | Kazuyoshi Saito | issuer page · 2026-11-12 |
| Jefferies (Japan) | Masahiro Nakanomyo | issuer page · 2026-11-12 |
| JPMorgan Securities Japan | Mio Shikanai | issuer page · 2026-11-12 |
| Macquarie Capital Securities (Japan) | Hiroshi Taguchi | issuer page · 2026-11-12 |
| Marusan Securities Co.,Ltd. | Haruka Minagawa | issuer page · 2026-11-12 |
| Mito Securities Co.,Ltd. | Yoichiro Watanabe | issuer page · 2026-11-12 |
| Mizuho Securities | Yoshitsugu Yamamoto | issuer page · 2026-11-12 |
| Morgan Stanley MUFG Research Japan | Suzune Tamura | issuer page · 2026-11-12 |
| Nomura Securities | Atsushi Yoshioka | issuer page · 2026-11-12 |
| Okasan Securities | Takashi Shimamoto | issuer page · 2026-11-12 |
| QUICK Corporate Valuation Research Center | Masayuki Tanibayashi | issuer page · 2026-11-12 |
| Rakuten Securities, Inc. | Yasuo Imanaka | issuer page · 2026-11-12 |
| Sanford C. Bernstein (Hong Kong) Limited | David Dai | issuer page · 2026-11-12 |
| SBI Securities Co., Ltd. | Tetsuya Wadaki | issuer page · 2026-11-12 |
| SMBC Nikko Securities | Takeru Hanaya | issuer page · 2026-11-12 |
| Tokai Tokyo Intelligence Laboratory Co., Ltd. | Hitoshi Shin | issuer page · 2026-11-12 |
| UBS Securities Japan | Atsuhiro Kinoshita | issuer page · 2026-11-12 |
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.
| licensor | entitlement | title | date | source |
|---|---|---|---|---|
| none 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.
- 10.1
- https://www.jpx.co.jp/english/markets/statistics-equities/misc/tvdivq0000001vg2-att/data_e.xlsx (identity.exchange)
- 10.2
- https://mapping.gleif.org/api/v2/isin-lei/latest (identity.isin)
- 10.3
- https://disclosure2dl.edinet-fsa.go.jp/searchdocument/codelist/Edinetcode.zip (identity.jurisdiction)
- 10.4
- https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei)
- 10.5
- https://mcp.jp-cm-kg.ai/events/TSE-PRIME/6857 (the disclosure lines)
- 10.6
- https://www.jpx.co.jp/markets/equities/suspended/index.html (the halt flag)
- 10.7
- https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100YKTA (the auditor)
- 10.8
- https://mcp.jp-cm-kg.ai/book/aio.json (the orderability chapter)
- 10.9
- https://www.advantest.com/en/investors/shares-and-corporate-bonds/analyst-coverage/ (coverage)
- 10.10
- https://mcp.jp-cm-kg.ai/record/TSE-PRIME/6857 (the record)
Read it by agent
The same page, signed and receipted: get_research at https://mcp.getresearch.ai/mcp with {"isin":"JP3122400009"}. Twins: .md · .json. Written: Claude through the platform account, Haiku class; one pass; checked against the numbers. Page hash sha256:7f437686fcb7d5a9.