# 金融商品取引法 / Financial Instruments and Exchange Act — 第四十二条 (Article 42) - Law: 金融商品取引法 (Financial Instruments and Exchange Act), 昭和二十三年法律第二十五号 - English title "Financial Instruments and Exchange Act": Ministry of Justice translation - Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say. - Provision: 第四十二条 (Article 42)（権利者に対する義務） — address `art-42` - Text in force since: 2026-08-12 - URL (the page that opens at this provision): https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-42 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/323AC0000000025/art-42 - Every provision below carries its address and both URLs on the line under it. - Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below. Only the Japanese as published by the government has legal effect; the text below is a copy of it. Every English rendering below is a translation and says which kind: the Ministry of Justice's translation, or this site's machine translation, whose model and date the Sources list names. They are never merged and never substituted for one another. --- ### 第四十二条（権利者に対する義務） — (Obligation to Right Holders) caption: Ministry of Justice translation — Japanese Law Translation Database System art-42 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-42 · https://japanlaw.org/l/323AC0000000025/art-42 **第一項** 金融商品取引業者等は、権利者（次の各号に掲げる業務の区分に応じ当該各号に定める者をいう。以下この款において同じ。）のため忠実に投資運用業を行わなければならない。 art-42/par-1 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-42/par-1 · https://japanlaw.org/l/323AC0000000025/art-42/par-1 A financial instruments business operator, etc. must work faithfully on behalf of right holders (meaning persons prescribed in the following items in accordance with the category of business set forth in each item; hereinafter the same applies in this Subsection) in providing investment management business: Ministry of Justice translation — Japanese Law Translation Database System **一** 第二条第八項第十二号に掲げる行為を行う業務　同号イ又はロに掲げる契約の相手方 art-42/par-1/item-1 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-42/par-1/item-1 · https://japanlaw.org/l/323AC0000000025/art-42/par-1/item-1 the business of performing the act specified in Article 2, paragraph (8), item (xii):the other party to the contract set forth in (a) or (b) of that item; Ministry of Justice translation — Japanese Law Translation Database System **二** 第二条第八項第十四号に掲げる行為を行う業務　同号に規定する有価証券に表示される権利その他の政令で定める権利を有する者 art-42/par-1/item-2 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-42/par-1/item-2 · https://japanlaw.org/l/323AC0000000025/art-42/par-1/item-2 the business of performing the act specified in Article 2, paragraph (8), item (xiv):the person that holds the rights indicated on the securities provided for in that item or other rights specified by Cabinet Order; and Ministry of Justice translation — Japanese Law Translation Database System **三** 第二条第八項第十五号に掲げる行為を行う業務　同号イからハまでに掲げる権利その他同号に規定する政令で定める権利を有する者 art-42/par-1/item-3 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-42/par-1/item-3 · https://japanlaw.org/l/323AC0000000025/art-42/par-1/item-3 the business of performing the act specified in Article 2, paragraph (8), item (xv):the person that holds rights set forth in (a) through (c) of that item or other rights specified by Cabinet Order as prescribed in that item. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 金融商品取引業者等は、権利者に対し、善良な管理者の注意をもつて投資運用業を行わなければならない。 art-42/par-2 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-42/par-2 · https://japanlaw.org/l/323AC0000000025/art-42/par-2 A financial instruments business operator, etc. must conduct investment management business with the due care of a prudent manager for right holders. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-42/par-1/item-1: 第二条第八項第十二号 → 金融商品取引法 第二条第八項第十二号 (Article 2, paragraph (8), item (xii)), art-2/par-8/item-12 — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-2/par-8/item-12 · https://japanlaw.org/l/323AC0000000025/art-2/par-8/item-12 - art-42/par-1/item-2: 第二条第八項第十四号 → 金融商品取引法 第二条第八項第十四号 (Article 2, paragraph (8), item (xiv)), art-2/par-8/item-14 — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-2/par-8/item-14 · https://japanlaw.org/l/323AC0000000025/art-2/par-8/item-14 - art-42/par-1/item-3: 第二条第八項第十五号 → 金融商品取引法 第二条第八項第十五号 (Article 2, paragraph (8), item (xv)), art-2/par-8/item-15 — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-2/par-8/item-15 · https://japanlaw.org/l/323AC0000000025/art-2/par-8/item-15 ## Cited by 13 provisions cite this one. No official source publishes this direction. - 金融商品取引法 第二条第四十三項第一号（定義） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-2/par-43/item-1 · https://japanlaw.org/l/323AC0000000025/art-2/par-43/item-1 - 金融商品取引法 第二十九条の五第一項第一号（適格投資家に関する業務についての登録等の特例） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-29-5/par-1/item-1 · https://japanlaw.org/l/323AC0000000025/art-29-5/par-1/item-1 - 金融商品取引法 第三十五条第一項第十五号（第一種金融商品取引業又は投資運用業を行う者の業務の範囲） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-35/par-1/item-15 · https://japanlaw.org/l/323AC0000000025/art-35/par-1/item-15 - 金融商品取引法 第三十七条の七第一項第一号ロ（指定紛争解決機関との契約締結義務等） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-37-7/par-1/item-1/sub-2 · https://japanlaw.org/l/323AC0000000025/art-37-7/par-1/item-1/sub-2 - 金融商品取引法 第四十二条の三第三項（運用権限の委託） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-42-3/par-3 · https://japanlaw.org/l/323AC0000000025/art-42-3/par-3 - 金融商品取引法 第六十三条第十一項（適格機関投資家等特例業務） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-63/par-11 · https://japanlaw.org/l/323AC0000000025/art-63/par-11 - 金融商品取引法 第六十三条の三第三項第二号（金融商品取引業者等が適格機関投資家等特例業務を行う場合） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-63-3/par-3/item-2 · https://japanlaw.org/l/323AC0000000025/art-63-3/par-3/item-2 - 金融商品取引法 第六十三条の九第八項（海外投資家等特例業務の届出等） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-63-9/par-8 · https://japanlaw.org/l/323AC0000000025/art-63-9/par-8 - 金融商品取引法 第六十三条の十一第三項第一号（金融商品取引業者等が海外投資家等特例業務を行う場合） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-63-11/par-3/item-1 · https://japanlaw.org/l/323AC0000000025/art-63-11/par-3/item-1 - 金融商品取引法 第六十五条の四第一項（内閣府令への委任） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-65-4/par-1 · https://japanlaw.org/l/323AC0000000025/art-65-4/par-1 - 金融商品取引法 第百五十六条の四十二第二項（指定紛争解決機関の業務） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-156-42/par-2 · https://japanlaw.org/l/323AC0000000025/art-156-42/par-2 - 金融商品取引法 第百七十三条第一項第四号イ（風説の流布等により有価証券等の価格に影響を与えた者に対する課徴金納付命令） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-173/par-1/item-4/sub-1 · https://japanlaw.org/l/323AC0000000025/art-173/par-1/item-4/sub-1 - 金融商品取引法 附則第三条の三第三項第一号ヘ（移行期間特例業務に関する特例） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/suppl-3231-25/art-3-3/par-3/item-1/sub-6 · https://japanlaw.org/l/323AC0000000025/suppl-3231-25/art-3-3/par-3/item-1/sub-6 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 金融商品取引法 — the text in force from 2026-08-12 (https://laws.e-gov.go.jp/law/323AC0000000025/20260812_508AC0000000064), retrieved 2026-10-22 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Financial Instruments and Exchange Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4633/tb), retrieved 2026-10-22 - This site's parser, version 212 — 金融商品取引法 — structure, counts, cross-references and defined terms, computed 2026-10-22