Skip to the text

Article 31 — Monitoring of compliance with the rules of the MTF or the OTF and with other legal obligations — compare

Showing 1 of 1Release 2 Nov 2026Details
Coverage
MiFID II: every English consolidation from 23 Mar 2023. Older wording is not held and is not replaced by any other text. Not covered: national guidance, court decisions.
Freshness
Release c89ff15e published 2 Nov 2026, 05:02 CET. This article checked word for word against EUR-Lex on 26 Oct 2026.
Shown
Showing 1 of 1
Failures
None.
Incomplete
No.
From
23 March 2023 · Consolidated version of 23 March 2023 · Checked against EUR-Lex on 26 Oct 2026 · Official source
To
2 November 2026 · Consolidated version of 28 March 2024 · Checked against EUR-Lex on 26 Oct 2026 · Official source
31(1)

1.Member States shall require that investment firms and market operators operating an MTF or OTF establish and maintain effective arrangements and procedures, relevant to the MTF or OTF, for the regular monitoring of the compliance by its members or participants or users with its rules. Investment firms and market operators operating an MTF or an OTF shall monitor the orders sent, including cancellations and the transactions undertaken by their members or participants or users under their systems, in order to identify infringements of those rules, disorderly trading conditions, conduct that may indicate behaviour that is prohibited under Regulation (EU) No 596/2014 or system disruptions in relation to a financial instrument and shall deploy the resource necessary to ensure that such monitoring is effective.

Member States shall require that investment firms and market operators operating an MTF or an OTF have arrangements in place to ensure that they meet data quality standards pursuant to Article 22b of Regulation (EU) No 600/2014.

31(2)

2.Member States shall require investment firms and market operators operating an MTF or an OTF to inform its competent authority immediately of significant infringements of its rules or disorderly trading conditions or conduct that may indicate behaviour that is prohibited under Regulation (EU) No 596/2014 or system disruptions in relation to a financial instrument.

The competent authorities of the investment firms and market operators operating an MTF or an OTF shall communicate to ESMA and to the competent authorities of the other Member States the information referred to in the first subparagraph.

In relation to conduct that may indicate behaviour that is prohibited under Regulation (EU) No 596/2014, a competent authority must be convinced that such behaviour is being or has been carried out before it notifies the competent authorities of the other Member States and ESMA.

31(3)

3.Member States shall also require investment firms and market operators operating an MTF or an OTF to also supply without undue delay the information referred to in paragraph 2 to the authority competent for the investigation and prosecution of market abuse and to provide full assistance to the latter in investigating and prosecuting market abuse occurring on or through its systems.

31(4)

4.The Commission shall be empowered to adopt delegated acts in accordance with Article 89 to determine circumstances that trigger an information requirement as referred to in paragraph 2 of this Article.