# 金融商品取引法 / Financial Instruments and Exchange Act — 第百六十一条 (Article 161) - 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: 第百六十一条 (Article 161)（金融商品取引業者の自己計算取引等の制限） — address `art-161` - 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-161 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/323AC0000000025/art-161 - 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. --- ### 第百六十一条（金融商品取引業者の自己計算取引等の制限） — (Restriction on Transactions by a Financial Instruments Business Operator on Its Own Account) caption: Ministry of Justice translation — Japanese Law Translation Database System art-161 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-161 · https://japanlaw.org/l/323AC0000000025/art-161 **第一項** 内閣総理大臣は、金融商品取引業者等若しくは取引所取引許可業者が自己の計算において行う有価証券の売買を制限し、又は金融商品取引業者等若しくは取引所取引許可業者の行う過当な数量の売買であつて取引所金融商品市場若しくは店頭売買有価証券市場の秩序を害すると認められるものを制限するため、公益又は投資者保護のため必要かつ適当であると認める事項を内閣府令で定めることができる。 art-161/par-1 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-161/par-1 · https://japanlaw.org/l/323AC0000000025/art-161/par-1 The Prime Minister may specify, in Cabinet Office Order, matters that the Prime Minister finds to be necessary and appropriate for ensuring the public interest or the protection of investors, in order to restrict the purchase and sale of the securities that a financial instruments business operator, etc. or authorized firm for on-exchange transactions conducts on its own account, or restrict a financial instruments business operator, etc. or authorized firm for on-exchange transactions from conducting excessive volumes of purchase and sales which are found to be detrimental to the order of the financial instruments exchange market or the over-the-counter securities market. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項の規定は、市場デリバティブ取引及び店頭デリバティブ取引について準用する。 art-161/par-2 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-161/par-2 · https://japanlaw.org/l/323AC0000000025/art-161/par-2 The provisions of the preceding paragraph apply mutatis mutandis to market derivatives transactions and over-the-counter derivatives transactions. Ministry of Justice translation — Japanese Law Translation Database System **第三項** 内閣総理大臣は、商品取引参加者が自己の計算において行う商品関連市場デリバティブ取引を制限し、又はその行う過当な数量の取引であつて取引所金融商品市場の秩序を害すると認められるものを制限するため、公益又は投資者保護のため必要かつ適当であると認める事項を内閣府令で定めることができる。 art-161/par-3 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-161/par-3 · https://japanlaw.org/l/323AC0000000025/art-161/par-3 The Prime Minister may specify the matters by Cabinet Office Order, which are found to be necessary and appropriate to secure the public interest or protection of investors, in order to restrict commodity-related market derivatives transactions to be conducted by a commodity trading participant on its own account, or restrict excessive volumes of transactions to be conducted by a commodity trading participant if such transactions are found to disturb the order of a financial instruments exchange market. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-161/par-2: 前項 → 金融商品取引法 第百六十一条第一項 (Article 161, paragraph (1)), art-161/par-1 — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-161/par-1 · https://japanlaw.org/l/323AC0000000025/art-161/par-1 ## Cited by 4 provisions cite this one. No official source publishes this direction. - 金融商品取引法 第百六十一条第二項（金融商品取引業者の自己計算取引等の制限） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-161/par-2 · https://japanlaw.org/l/323AC0000000025/art-161/par-2 - 金融商品取引法 第百九十四条の六の三第一項第一号（商品市場所管大臣への事前通知） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-194-6-3/par-1/item-1 · https://japanlaw.org/l/323AC0000000025/art-194-6-3/par-1/item-1 - 金融商品取引法 第百九十四条の六の三第一項第七号（商品市場所管大臣への事前通知） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-194-6-3/par-1/item-7 · https://japanlaw.org/l/323AC0000000025/art-194-6-3/par-1/item-7 - 金融商品取引法 第二百五条第一項第十八号 — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-205/par-1/item-18 · https://japanlaw.org/l/323AC0000000025/art-205/par-1/item-18 --- ## 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