{"entity":{"edinet_code":"E04848","sec_code":"9699","name_ja":"ニシオホールディングス株式会社","name_en":"NISHIO HOLDINGS CO., LTD.","industry":"サービス業","industry_en":"Services"},"names_note":"English company names are as filed: each company's own annual report states its English name on the cover page. For a company that files no annual report, EDINET's filer registry is used instead. The as-filed Japanese name is always returned alongside.","filing":{"doc_id":"S100XB09","filer_name":"ニシオホールディングス株式会社","filer_name_en":"NISHIO HOLDINGS CO., LTD.","period_end":"2025-09-30","filed_date":"2025-12-18","sha256":"4a09481bd61c7c577989b2f06c69ee7a0b83d0133c69612cc7d47144fede9bdc","status":"clean"},"basis":{"measurement":"carrying_amount","entity_scope":"largest_holding_company","share_scope":"both","trust_included":"unknown","as_of":"2025-09-30","period_type":"annual","labels":{"measurement":"Balance-sheet carrying amount. Under Japanese GAAP listed equities are carried at market with the valuation difference in other comprehensive income, so carrying amount and acquisition cost diverge enormously on positions bought decades ago.","entity_scope":"The group's largest holder of policy shares (最大保有会社) — at a bank group this is the commercial bank, which excludes trust-bank and securities-subsidiary holdings.","share_scope":"Listed and unlisted shares together.","trust_included":"The filing does not state whether retirement-benefit-trust shares are included. Never guessed — shares contributed to such a trust leave the holder's balance sheet while the settlor normally keeps the right to instruct the vote.","period_type":"From an annual securities report (有価証券報告書). The policy shareholding table appears only in the annual report."},"not_comparable":"Figures are balance-sheet CARRYING AMOUNT at fiscal year end, from the annual securities report. They are NOT comparable with the acquisition-cost or book-value-reduction figures quoted in press coverage and IR presentations, and NOT comparable with interim (half-year) figures, which this product does not hold. Always state the basis with the number, and use check_claim before setting one of our figures against a published one."},"basis_note":"The basis every yen figure on this response is on. entity_scope is read from the filing's own disclosing entities, not assumed: scale_entities and flows each carry their own entity_scope and share_scope, and a figure quoted for one entity is not the group figure.","holdings":[{"holder_table":"largest","held_name_raw":"太平電業㈱","held_name_en":"TAIHEI DENGYO KAISHA,LTD.","held_sec_code":"1968","match_status":"matched","shares":659400,"book_value_yen":1378000000,"prior_shares":219800,"prior_book_value_yen":1138000000,"purpose_ja":"（保有目的）営業上の取引関係維持の強化（定量的な保有効果）（注）（株式数が増加した理由）株式分割による増加","reciprocal":"有","pct_outstanding":1.041115044633426,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":1,"pct_of_holder_equity":0.9822580530191248,"pct_of_holder_assets":0.4635656880653702,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":140289000000,"holder_total_assets_yen":297261000000,"implausible":false,"reciprocal_held_both_ways":true,"corporate_actions":["share split"],"note_refs":[],"share_ratio":3.0,"reclassified_to_pure":false},{"holder_table":"largest","held_name_raw":"インフロニア・ホールディングス㈱","held_name_en":"INFRONEER Holdings Inc.","held_sec_code":"5076","match_status":"matched","shares":229400,"book_value_yen":353000000,"prior_shares":229400,"prior_book_value_yen":268000000,"purpose_ja":"（保有目的）営業上の取引関係維持の強化（定量的な保有効果）（注）","reciprocal":"無","pct_outstanding":0.08775912334894446,"pct_unavailable":null,"pct_basis_period_end":"2026-03-31","pct_share_classes":2,"pct_of_holder_equity":0.2516234344816771,"pct_of_holder_assets":0.11875086203706507,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":140289000000,"holder_total_assets_yen":297261000000,"implausible":false,"reciprocal_held_both_ways":false,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"largest","held_name_raw":"PicoCELA㈱","held_name_en":null,"held_sec_code":null,"match_status":"foreign","shares":432000,"book_value_yen":28000000,"prior_shares":null,"prior_book_value_yen":null,"purpose_ja":"（保有目的）営業上の取引関係維持の強化（定量的な保有効果）（注）（株式数が増加した理由）株式上場及び株式分割による増加","reciprocal":"無","pct_outstanding":null,"pct_unavailable":null,"pct_basis_period_end":null,"pct_share_classes":null,"pct_of_holder_equity":0.01995879933565711,"pct_of_holder_assets":0.009419331832968334,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":140289000000,"holder_total_assets_yen":297261000000,"implausible":false,"reciprocal_held_both_ways":false,"corporate_actions":["share split"],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false},{"holder_table":"largest","held_name_raw":"日本道路㈱","held_name_en":"THE NIPPON ROAD CO.,LTD.","held_sec_code":null,"match_status":"matched","shares":null,"book_value_yen":null,"prior_shares":14014,"prior_book_value_yen":24000000,"purpose_ja":"当事業年度末日において保有しておりません","reciprocal":"無","pct_outstanding":null,"pct_unavailable":null,"pct_basis_period_end":"2025-03-31","pct_share_classes":1,"pct_of_holder_equity":null,"pct_of_holder_assets":null,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":140289000000,"holder_total_assets_yen":297261000000,"implausible":false,"reciprocal_held_both_ways":false,"corporate_actions":[],"note_refs":[],"share_ratio":null,"reclassified_to_pure":false}],"holders":[{"holder_name":"東京海上ホールディングス株式会社","holder_name_en":"Tokio Marine Holdings, Inc.","holder_sec_code":"8766","doc_id":"S100YLS8","period_end":"2026-03-31","holder_table":"largest","shares":293632,"book_value_yen":1267000000,"prior_shares":366832,"prior_book_value_yen":1533000000,"purpose_ja":"保険事業における顧客企業との長期的かつ安定的な保険取引関係の維持および強化を図り、当社グループの企業価値を高めることを目的として、保有してきたものです。現在は、当社グループのリスクポートフォリオを見直し、社会課題解決や成長分野等に対して資本を振り向けるため、売却方針に則り保有をゼロにすることをめざしています。","reciprocal":"無","pct_outstanding":1.0576544731243123,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.023215456106755183,"pct_of_holder_assets":0.003964089789293141,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":5457571000000,"holder_total_assets_yen":31961940000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"太平電業株式会社","holder_name_en":"TAIHEI DENGYO KAISHA,LTD.","holder_sec_code":"1968","doc_id":"S100YPZ0","period_end":"2026-03-31","holder_table":"reporting","shares":223900,"book_value_yen":966000000,"prior_shares":223900,"prior_book_value_yen":935000000,"purpose_ja":"当社と共同で開発した機材管理システムの運用、また本業の重機等のリースを主とした多くの取引を行っております。取引関係の維持・強化を行い、建設事業の収益の安定および向上を目的に保有しております。","reciprocal":"有","pct_outstanding":0.8064817068048902,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.7550473272418887,"pct_of_holder_assets":0.5508510820289111,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":127939000000,"holder_total_assets_yen":175365000000,"implausible":false,"reciprocal_held_both_ways":true},{"holder_name":"株式会社タダノ","holder_name_en":"ＴＡＤＡＮＯ　ＬＴＤ．","holder_sec_code":"6395","doc_id":"S100XQP3","period_end":"2025-12-31","holder_table":"reporting","shares":99700,"book_value_yen":472000000,"prior_shares":99700,"prior_book_value_yen":471000000,"purpose_ja":"（保有目的）車両搭載型クレーン及び高所作業車の主要顧客であります。安定的な売上確保のための良好な関係維持を目的としております。定性的観点及び定量的観点から総合的に検証し、保有合理性ありと判断しております。","reciprocal":"無","pct_outstanding":0.3591166867728788,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.22918629155215445,"pct_of_holder_assets":0.1029378730680066,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":205946000000,"holder_total_assets_yen":458529000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"日立建機株式会社","holder_name_en":"Hitachi Construction Machinery Co., Ltd.","holder_sec_code":"6305","doc_id":"S100YIBR","period_end":"2026-03-31","holder_table":"reporting","shares":66000,"book_value_yen":285000000,"prior_shares":66000,"prior_book_value_yen":276000000,"purpose_ja":"・保有目的：販売先の強化・定量的な保有効果：販売の拡充の結果、提出会社の売上収益に一定の効果がみられた。","reciprocal":"無","pct_outstanding":0.2377302038817452,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.03166082700301944,"pct_of_holder_assets":0.015344681937048039,"holder_equity_basis":"ifrs_consolidated_excl_nci","holder_equity_yen":900166000000,"holder_total_assets_yen":1857321000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"デンヨー株式会社","holder_name_en":"Denyo Co.,Ltd.","holder_sec_code":"6517","doc_id":"S100YHXJ","period_end":"2026-03-31","holder_table":"reporting","shares":64300,"book_value_yen":277000000,"prior_shares":64300,"prior_book_value_yen":268000000,"purpose_ja":"・同社グループは建機レンタル会社であり、当社発電機等の主要販売先であります。同社グループとの取引関係の維持強化を通じて、当社の企業価値の向上を図るために保有しております。・当社の企業価値の向上に資するかどうかについて定量的に保有の効果を示すことは困難であります。同社のＲＯＥ、配当利回り、配当性向及び現在の取引実績並びに将来における取引拡大期待の状況等の定性的情報を総合的に勘案した結果、当社の企業価値の向上に資すると判断いたしました。","reciprocal":"無","pct_outstanding":0.23160685014539723,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.3246106430103243,"pct_of_holder_assets":0.2649652771135046,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":85333000000,"holder_total_assets_yen":104542000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社ＡＩＲＭＡＮ","holder_name_en":"AIRMAN CORPORATION","holder_sec_code":"6364","doc_id":"S100YI16","period_end":"2026-03-31","holder_table":"reporting","shares":52707,"book_value_yen":227430000,"prior_shares":52707,"prior_book_value_yen":220315000,"purpose_ja":"建設機械事業における商品販売等の業務のより円滑な推進のため保有しております。","reciprocal":"無","pct_outstanding":0.18984917963629008,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.5032949409486522,"pct_of_holder_assets":0.3462150036731398,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":45188215000,"holder_total_assets_yen":65690394000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社　トプコン","holder_name_en":"TOPCON CORPORATION","holder_sec_code":"7732","doc_id":"S100VZAD","period_end":"2025-03-31","holder_table":"reporting","shares":48338,"book_value_yen":202000000,"prior_shares":48338,"prior_book_value_yen":187000000,"purpose_ja":"（保有目的）主要な販売先であり、円滑、且つ継続的な取引強化のため。","reciprocal":"無","pct_outstanding":0.17411592349878416,"pct_unavailable":null,"pct_basis_period_end":"2024-09-30","pct_share_classes":1,"pct_of_holder_equity":0.19267455169782527,"pct_of_holder_assets":0.08107760973573516,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":104840000000,"holder_total_assets_yen":249144000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"酒井重工業株式会社","holder_name_en":"SAKAI HEAVY INDUSTRIES, LTD.","holder_sec_code":"6358","doc_id":"S100YKE1","period_end":"2026-03-31","holder_table":"reporting","shares":45100,"book_value_yen":194606000,"prior_shares":45100,"prior_book_value_yen":188518000,"purpose_ja":"主要販売先の１社として国内全域での取引関係の維持・強化のために保有。","reciprocal":"無","pct_outstanding":0.1624489726525259,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.6143408363945252,"pct_of_holder_assets":0.44292752135659647,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":31677204000,"holder_total_assets_yen":43936308000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社ナガワ","holder_name_en":"NAGAWA Co., Ltd.","holder_sec_code":"9663","doc_id":"S100YBEF","period_end":"2026-03-31","holder_table":"reporting","shares":null,"book_value_yen":113713000,"prior_shares":null,"prior_book_value_yen":110155000,"purpose_ja":"建設機械のレンタル会社であり、ユニットハウス事業、モジュール・システム建築の取引拡大を図るため。","reciprocal":"無","pct_outstanding":null,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.16421835511589283,"pct_of_holder_assets":0.14334173704777511,"holder_equity_basis":"parent_only","holder_equity_yen":69245000000,"holder_total_assets_yen":79330000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社鶴見製作所","holder_name_en":"TSURUMI MANUFACTURING CO.,LTD.","holder_sec_code":"6351","doc_id":"S100YKE5","period_end":"2026-03-31","holder_table":"reporting","shares":26400,"book_value_yen":113000000,"prior_shares":26400,"prior_book_value_yen":110000000,"purpose_ja":"・主要な取引先である同社との取引関係の維持強化を通じ、企業価値向上を図るため保有しております。・取引関係への影響を考慮し、定量的な保有効果を示すことは困難ですが、社内での定量的・定性的な検証を実施した結果、効果は十分にあるものと判断しております。","reciprocal":"無","pct_outstanding":0.09509208155269809,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.10909968621771662,"pct_of_holder_assets":0.0817223897651747,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":103575000000,"holder_total_assets_yen":138273000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"アサガミ株式会社","holder_name_en":"ASAGAMI CORPORATION","holder_sec_code":"9311","doc_id":"S100YIGL","period_end":"2026-03-31","holder_table":"reporting","shares":24090,"book_value_yen":103949000,"prior_shares":23275,"prior_book_value_yen":97290000,"purpose_ja":"物流セグメントにおける安定的な取引関係の維持・強化および市場等に関する情報共有のため。株式数の増加は持株会への拠出","reciprocal":"無","pct_outstanding":0.086771524416837,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.44076440434686504,"pct_of_holder_assets":0.22867692046683186,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":23583801000,"holder_total_assets_yen":45456708000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社カナモト","holder_name_en":"Kanamoto Co.,Ltd.","holder_sec_code":"9678","doc_id":"S100XGOW","period_end":"2025-10-31","holder_table":"reporting","shares":1756,"book_value_yen":7000000,"prior_shares":1756,"prior_book_value_yen":6000000,"purpose_ja":"（保有目的）建設関連事業等における取引関係の維持・強化のため","reciprocal":"無","pct_outstanding":0.006325064212368858,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.004445488781491525,"pct_of_holder_assets":0.0021599071857026485,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":157463000000,"holder_total_assets_yen":324088000000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"技研ホールディングス株式会社","holder_name_en":"Giken Holdings Co.,Ltd.","holder_sec_code":"1443","doc_id":"S100YEE3","period_end":"2026-03-31","holder_table":"reporting","shares":100,"book_value_yen":431000,"prior_shares":100,"prior_book_value_yen":418000,"purpose_ja":"政策目的等として保有し、当社の中長期的な事業戦略上（建設関連）必要であると判断し、保有しております。","reciprocal":"無","pct_outstanding":0.0003601972786087049,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.0033352516834315297,"pct_of_holder_assets":0.002358266152385906,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":12922563000,"holder_total_assets_yen":18276139000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"株式会社レント","holder_name_en":"ＲＥＮＴ　ＣＯＲＰＯＲＡＴＩＯＮ","holder_sec_code":"372A","doc_id":"S100YYO2","period_end":"2026-05-31","holder_table":"reporting","shares":100,"book_value_yen":384000,"prior_shares":100,"prior_book_value_yen":396000,"purpose_ja":"（保有目的）レンタル業界内における情報収集のため。（定量的な保有効果）（注）１","reciprocal":"無","pct_outstanding":0.0003601972786087049,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":0.001913623137936298,"pct_of_holder_assets":0.0005630360664189015,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":20066647000,"holder_total_assets_yen":68201670000,"implausible":false,"reciprocal_held_both_ways":false},{"holder_name":"フリージア・マクロス株式会社","holder_name_en":"FREESIA MACROSS CORPORATION","holder_sec_code":"6343","doc_id":"S100YIIQ","period_end":"2026-03-31","holder_table":"reporting","shares":null,"book_value_yen":null,"prior_shares":100,"prior_book_value_yen":418000,"purpose_ja":"－","reciprocal":"無","pct_outstanding":null,"pct_unavailable":null,"pct_basis_period_end":"2025-09-30","pct_share_classes":1,"pct_of_holder_equity":null,"pct_of_holder_assets":null,"holder_equity_basis":"jgaap_consolidated","holder_equity_yen":24569956000,"holder_total_assets_yen":39325195000,"implausible":false,"reciprocal_held_both_ways":false}],"reclassified":[],"reclassified_note":"As filed, from the annual report's 保有目的を変更した投資株式 table. direction=to_pure means the filer moved the holding from a policy shareholding to 純投資目的 (pure investment); the shares are not necessarily sold, and the position leaves the named policy table in the year of the change. direction=to_policy is the reverse. fy_of_change_ja is the fiscal year the filer states the change took effect, verbatim — some filers list more than one. A filing repeats these rows for several years after the change, so this is a standing disclosure, not a one-year event.","implausible_note":"A row is flagged implausible when its two filed numbers are mutually impossible — book value ÷ shares of ¥1,000,000 or more, which no listed Japanese share reaches. It is a filer tagging error (a value entered at the wrong scale, or a share count in thousands), not an extraction error: the values match the filing's XBRL exactly. Flagged rows are still returned, exactly as filed, but are excluded from the yen aggregates here and counted in excluded_positions / excluded_yen so the exclusion is visible.","notes":[{"holder_table":"largest","note_no":"1","text_ja":"（注） 特定投資株式における定量的な保有効果については営業上の機密に関係することもあり記載が困難でありますが、取締役会において保有に伴う便益・リスクを精査し、ROE向上に寄与するか等の観点で保有意義・合理性を検証しております。"}],"notes_note":"The filing's own numbered footnotes to the named policy table, verbatim. The XBRL numbers them (注)1, (注)2 … and gives no link back to a row, so a note is tied to a position only where it names that issuer.","flows":[{"holder_table":"largest","share_class":"listed","issues_increased":1,"acquisition_cost_yen":0,"issues_decreased":1,"sale_proceeds_yen":36000000,"entity_scope":"largest_holding_company","share_scope":"listed"},{"holder_table":"largest","share_class":"unlisted","issues_increased":null,"acquisition_cost_yen":null,"issues_decreased":null,"sale_proceeds_yen":null,"entity_scope":"largest_holding_company","share_scope":"unlisted"}],"flows_note":"The filer's own tally, as filed, of how many issues increased or decreased during the year and the yen involved — acquisition cost for increases, sale proceeds for decreases. Read against the reclassification table this separates what was actually sold from what merely changed category. Counts are as filed and are not corrected for filer tagging errors.","no_reduction_measure":"This product holds sale proceeds (売却価額), as filed, for one fiscal year. It does NOT hold a book-value-reduction measure. The two are different measures and must never be presented as equivalent.","scale":{"policy_total_yen":1801000000,"listed_yen":1760000000,"unlisted_yen":41000000,"listed_issues":3,"unlisted_issues":2,"equity_yen":140289000000,"equity_basis":"jgaap_consolidated","total_assets_yen":297261000000,"assets_basis":"jgaap_consolidated","pct_of_equity":1.2837784858399446,"pct_of_assets":0.605864879684856,"equity_basis_label":"Consolidated net assets (Japanese GAAP)","assets_basis_label":"Consolidated net assets (Japanese GAAP)","equity_calc":"total policy shareholdings ÷ shareholders' equity × 100, both as filed in this annual securities report","assets_calc":"total policy shareholdings ÷ total assets × 100, both as filed in this annual securities report"},"scale_entities":[{"holder_table":"largest","share_class":"listed","book_value_yen":1760000000,"issue_count":3,"holder_table_label":"Largest holder in the group","entity_scope":"largest_holding_company","share_scope":"listed"},{"holder_table":"largest","share_class":"unlisted","book_value_yen":41000000,"issue_count":2,"holder_table_label":"Largest holder in the group","entity_scope":"largest_holding_company","share_scope":"unlisted"}],"scale_history":[{"year":"2021","period_end":"2021-09-30","policy_total_yen":1007000000,"equity_yen":110788000000,"equity_basis":"jgaap_consolidated","pct_of_equity":0.9089432068455068,"pct_of_assets":0.4045265191838768},{"year":"2022","period_end":"2022-09-30","policy_total_yen":1185000000,"equity_yen":116778000000,"equity_basis":"jgaap_consolidated","pct_of_equity":1.0147459281714022,"pct_of_assets":0.4528102896839499},{"year":"2023","period_end":"2023-09-30","policy_total_yen":1553000000,"equity_yen":124397000000,"equity_basis":"jgaap_consolidated","pct_of_equity":1.2484223896074664,"pct_of_assets":0.5697639863667548},{"year":"2024","period_end":"2024-09-30","policy_total_yen":1572000000,"equity_yen":134311000000,"equity_basis":"jgaap_consolidated","pct_of_equity":1.170417910670012,"pct_of_assets":0.5407971597828555},{"year":"2025","period_end":"2025-09-30","policy_total_yen":1801000000,"equity_yen":140289000000,"equity_basis":"jgaap_consolidated","pct_of_equity":1.2837784858399446,"pct_of_assets":0.605864879684856}],"scale_note":"The policy total is Official (as filed) — the filing's own total carrying amount for the whole policy bucket, listed and unlisted, summed across the entities the filing discloses. It is a floor: holdings at group companies the filing does not name are disclosed nowhere and are not included. The percentages are calculated, not filed, and carry their formula. equity_basis names which figure the denominator is, because filers report under Japanese, IFRS or US accounting standards and an adopter of the latter two stops tagging the Japanese consolidated figure — a parent-only denominator is a different measure and is labelled as one, never silently mixed with a group figure. Percentages are null where equity or total assets is missing or not positive; missing is never shown as zero.","scale_reference":"ISS's Japan proxy voting guidelines recommend a vote against the top executive at a company that allocates 20 percent or more of its net assets to cross-shareholdings, a policy effective from February 2022. ISS counts unilateral holdings, not only mutual ones.","ownership_calc":"shares held ÷ (issuer's issued shares − treasury shares) × 100, both as filed, the denominator taken from the issuer's own annual securities report nearest the holding's fiscal year end","ownership_note":"Derived, not filed. The denominator is the issuer's own reported issued shares less treasury shares, from its annual report nearest this holding's fiscal year end on either side — pct_basis_period_end gives that date, and it can fall after the holding's date where that report is the closer one. For a single-class listed stock this equals the stake's share of market capitalisation. It is null where the issuer files no annual report we hold; where the issuer's share count moves by half or more across the window, because a split or issue makes the share base indeterminate; and where the result would exceed 100%, which is a data fault rather than a stake. It is less exact where the issuer has more than one share class (pct_share_classes > 1), because treasury shares are reported across all classes.","holder_share_calc":"this position's book value ÷ the holder's shareholders' equity (or total assets) × 100, both as filed in the holder's own annual securities report","holder_share_note":"The mirror of pct_outstanding. That sizes a stake against the ISSUER — how much of the issuer this holder owns. pct_of_holder_equity and pct_of_holder_assets size the same position against the HOLDER: how much of its own capital is committed to this one name. Calculated, not filed. Null where the holder's filing gives no usable denominator, never zero. holder_equity_basis says which accounting figure the denominator is, and a parent_only basis is not comparable with a consolidated one. A position CAN legitimately exceed 100% of equity — a holder whose book equity is smaller than one long-held stake is a real and commercially interesting case, not an error — so no ceiling is imposed. Extreme values are worth checking against the filing: where the position's own two filed numbers are mutually impossible the row is marked `implausible`, but that test catches only scale errors visible per share, so it does not catch every bad figure. The book value and share count are returned alongside so the reader can check.","action_calc":"keyword match over the filing's own stated purpose and table footnotes: 株式分割、株式併合、株式交換、株式移転、会社分割、合併、持株会社、商号変更、公開買付、上場廃止","ratio_calc":"current shares ÷ prior shares where that ratio is an exact whole number (or its exact reciprocal) — the signature of a split or a consolidation rather than a trade","history":[{"year":"2021","period_end":"2021-09-30","named_holdings":6,"book_value_yen":963000000},{"year":"2022","period_end":"2022-09-30","named_holdings":6,"book_value_yen":1143000000},{"year":"2023","period_end":"2023-09-30","named_holdings":5,"book_value_yen":null},{"year":"2024","period_end":"2024-09-30","named_holdings":5,"book_value_yen":1430000000},{"year":"2025","period_end":"2025-09-30","named_holdings":4,"book_value_yen":1759000000}],"history_note":"One point per annual report filed. Each year's book value is as filed; book values are fair-valued at period end, so a change reflects both trading and market moves.","provenance":{"trust":"official","note":"Figures exactly as filed in each company's 有価証券報告書 (annual securities report), EDINET. Raw filings archived with SHA-256; doc_id links to the source filing."}}