# 金融商品取引法 / Financial Instruments and Exchange Act — 第百五十七条 (Article 157)

- 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: 第百五十七条 (Article 157)（不正行為の禁止） — address `art-157`
- 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-157
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/323AC0000000025/art-157
- 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.

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### 第百五十七条（不正行為の禁止） — (Prohibition of Wrongful Acts)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-157 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-157 · https://japanlaw.org/l/323AC0000000025/art-157</sup>

**第一項**  何人も、次に掲げる行為をしてはならない。
<sup>art-157/par-1 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-157/par-1 · https://japanlaw.org/l/323AC0000000025/art-157/par-1</sup>
It is prohibited for any person to engage in the following acts:
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **一**  有価証券の売買その他の取引又はデリバティブ取引等について、不正の手段、計画又は技巧をすること。
  <sup>art-157/par-1/item-1 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-157/par-1/item-1 · https://japanlaw.org/l/323AC0000000025/art-157/par-1/item-1</sup>
  using wrongful means, schemes, or techniques in a purchase and sale or other transaction of Securities or in a derivatives transaction, etc.;
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **二**  有価証券の売買その他の取引又はデリバティブ取引等について、重要な事項について虚偽の表示があり、又は誤解を生じさせないために必要な重要な事実の表示が欠けている文書その他の表示を使用して金銭その他の財産を取得すること。
  <sup>art-157/par-1/item-2 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-157/par-1/item-2 · https://japanlaw.org/l/323AC0000000025/art-157/par-1/item-2</sup>
  acquiring money or other property through the use of a document that contains a false indication regarding a material particular or that lacks an indication of a material particular that is necessary to prevent it from being misleading, or other indication for the purchase and sale or other transaction of securities or a derivatives transaction, etc.; or
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **三**  有価証券の売買その他の取引又はデリバティブ取引等を誘引する目的をもつて、虚偽の相場を利用すること。
  <sup>art-157/par-1/item-3 · https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-157/par-1/item-3 · https://japanlaw.org/l/323AC0000000025/art-157/par-1/item-3</sup>
  using false quotations in order to induce a purchase and sale or other transaction of securities or a derivatives transaction, etc.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

## Cited by

3 provisions cite this one. No official source publishes this direction.

- 金融商品取引法 第百八十五条の二十二第二項（不正行為の禁止） — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-185-22/par-2 · https://japanlaw.org/l/323AC0000000025/art-185-22/par-2
- 金融商品取引法 第百九十七条第一項第五号 — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-197/par-1/item-5 · https://japanlaw.org/l/323AC0000000025/art-197/par-1/item-5
- 金融商品取引法 第百九十七条の二第一項第十三号 — https://japanlaw.org/ja/financial-instruments-and-exchange-act/art-197-2/par-1/item-13 · https://japanlaw.org/l/323AC0000000025/art-197-2/par-1/item-13

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## 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
