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In forceFund managementLast checked 13 November 2026

Money market fund reporting (MMFR Art 37)

A regulatory return listed by the European Securities and Markets Authority (ESMA), European Union.

Article 37 of the Money Market Fund Regulation requires the people who run EU money market funds to tell their regulator, fund by fund, what the fund holds, how liquid it is, who its biggest investors are, how it is valued, and how it held up under stress tests, so the EU can keep an eye on the whole sector. Source

The facts

Who files
The people who run money market funds authorised in the EU file with their own National Competent Authority first. That authority passes the figures on to ESMA, which keeps them in one central database for the whole EU; of all the fund-reporting regimes on this page, this is the only one where ESMA ends up holding everyone's data in one place. Source
How often
Not restated as a single frequency on the ESMA page read; the regulation's own reporting template (Commission Implementing Regulation (EU) 2018/708) is understood from the regulation's title to be a quarterly reporting template, which this library records as 'quarterly' subject to that caveat. Source
Deadline
Not stated on the page read. Source
Format
Other. Not confirmed on the page read; the reporting template is set out in Commission Implementing Regulation (EU) 2018/708, which was not independently fetched this session. Source
How it is filed
The format above is what the library records; what could not be verified is on the ESMA's page.
Status
In force
Group
Fund management

Templates (1)

The tables and forms inside the return. Plain name first, the ESMA's code in brackets.

  • Money market fund reporting template (MMFR Art 37)

A single reporting template in the Annex to Commission Implementing Regulation (EU) 2018/708; its internal fields are not itemised in this library. Source

Validation rules

No published validation rules were found for this return. No validation rules specific to Article 37 reporting were found on the page read; an MMFR Data Quality Engagement Framework (DQEF) exists between ESMA and NCAs but is a process framework, not a published rule set. Source

Public data

No published data from this return was found. Not stated on the page read. Source

Official documents (1)

The ESMA's own files, with the size and SHA-256 fingerprint of each as downloaded on 13 November 2026, so anyone can tell whether a copy is the same version.

Sources

Every page and document this return's facts were read from.

Knowing exactly what is collected, in what format and under which rules is the first step to real-time supervision. Line4 builds SupTech software for financial regulators that runs checks like these as each return arrives.

Line4's own text, and the way Line4 has collected and arranged these records, are free to reuse under CC BY 4.0. Please credit: “Source: Line4 regulatory submissions library (CC BY 4.0), https://www.line4.ai”. The facts themselves belong to no one. The regulators' document titles, template names, quoted terms and documents belong to them and are not covered by this licence: see ESMA's reuse terms. This describes what regulators publish. It is not legal or regulatory advice: always rely on the regulator's own text. Not affiliated with or endorsed by any regulator.

Source: European Securities and Markets Authority (ESMA), https://www.esma.europa.eu. The plain-English summaries are Line4's own; ESMA does not endorse this library.

Last checked 13 November 2026.