Live Updates

Answer to the public consultation – Institutional Money Market Funds Association (IMMFA)

AI Analysis

CSSF published IMMFA’s response to its consultation on enhanced weekly liquid asset (WLA) levels for money market funds, alongside final guidance issued on 30 October 2026. The guidance uses market-resilience benchmarks of 20% WLA for VNAV MMFs and 40% for public debt CNAV and LVNAV MMFs, increasing supervisory attention where funds remain below those levels even though the benchmarks do not replace the statutory MMFR minima.

Key dates

2026-05-11
European Commission published its report on the adequacy of the MMFR and identified market-resilience WLA levels of 20% for VNAV MMFs and 40% for public debt CNAV and LVNAV MMFs.
2026-06-08
CSSF launched its consultation on Guidance on Money Market Fund Weekly Liquid Asset Levels.
2026-08-03 Deadline
Deadline for stakeholders to submit responses to the CSSF consultation.
2026-10-30
CSSF published the IMMFA consultation response and final guidance, and announced a three-month implementation period.

Suggested considerations

  • Firms should classify each affected MMF by VNAV, public debt CNAV or LVNAV status and map the applicable 20% or 40% WLA resilience benchmark against the existing 15% or 30% MMFR minimum.
  • MMF managers should update liquidity-risk policies, escalation thresholds, management information and governance records to evidence enhanced vigilance when WLA approaches or falls below the relevant benchmark.
  • Risk teams should incorporate the 20% and 40% benchmarks into Article 28 MMFR stress-testing and assess whether investor concentration, redemption behaviour, market liquidity and portfolio composition require liquidity materially above the benchmark.
  • Firms should establish controls to identify periods exceeding 10 business days below the applicable benchmark and procedures for timely CSSF notification, including documented explanations, justifications and any relevant Article 28(4) or (5) remedial measures.
  • Boards and senior management should review whether the three-month implementation period announced by CSSF requires changes to investment guidelines, liquidity buffers, breach escalation and reporting calendars.
  • Compliance teams may wish to document that the resilience benchmarks are supervisory reference points rather than replacements for the MMFR statutory ratios, while recognising the CSSF’s stated intention to increase supervisory engagement for prolonged deviations.
  • Firms should monitor cross-border consistency with the parallel supervisory approaches of the French AMF and Central Bank of Ireland, particularly where groups manage MMFs in multiple EU jurisdictions.

What changed

The CSSF has finalised guidance, following the consultation that closed on 3 August 2026, with only slight clarifications. MMF managers are expected to incorporate 20% WLA for VNAV MMFs and 40% WLA for public debt CNAV and LVNAV MMFs into liquidity-risk frameworks and Article 28 stress-testing processes. These benchmarks sit above the existing Regulation (EU) 2017/1131 minimum WLA requirements of 15% for VNAV MMFs and 30% for public debt CNAV and LVNAV MMFs. Where WLA approaches or falls below the relevant benchmark, managers are expected to apply enhanced vigilance, timely escalation and reinforced internal decision-making. Where WLA remains below the benchmark for more than 10 business days, or a prolonged or substantial deviation is expected, the manager must notify the CSSF with explan

Compliance impact

The publication materially raises supervisory expectations for MMF liquidity management and creates a potential notification and supervisory-engagement trigger after more than 10 business days below the relevant resilience benchmark. Although it does not amend the binding MMFR minimum ratios, persistent underperformance may lead to increased CSSF scrutiny, requiring robust evidence of escalation,

Who is affected

  • Luxembourg-authorised VNAV money market funds and their managers
  • Luxembourg-authorised public debt CNAV money market funds and their managers
  • Luxembourg-authorised LVNAV money market funds and their managers
  • Depositaries, risk functions and boards overseeing affected EU money market funds
  • Regulation (EU) 2017/1131 on money market funds
  • Articles 17 and 28 of Regulation (EU) 2017/1131
  • ESMA guidelines on stress test scenarios for money market funds

AI-generated analysis. May contain errors or omissions — verify with the original CSSF source before acting. Full disclaimer.

What the CSSF said

No description available.

Published by CSSF . Read the full notice at the source for the authoritative text.

Relevant Firm Types

Asset ManagerHedge Fund
View Original on CSSF Back to Feed

Share this update