Live Updates

Council Regulation (EU) 2026/1164 of 22 May 2026

amending Regulation (EU) 2023/1529 concerning restrictive measures in view of Iran’s military support to Russia’s war of aggression against Ukraine and to armed groups and entities in the Middle East and the Red Sea region as well as Iran’s actions undermining freedom of navigation in the Middle East

All Firms
🇱🇺 CSSF Guidance medium

Repeal of Circular IML 91/75

No description available.

AI Analysis

The CSSF has formally repealed Circular IML 91/75 with immediate effect through the publication of Circular CSSF 26/912 on 22 May 2026. Compliance teams for Luxembourg UCIs and related structures must now ensure that no policies, procedures or prospectus provisions continue to rely on or reference IML 91/75, and instead rely on the current UCI, SIF, SICAR and EU fund law framework and subsequent CSSF circulars and administrative practice.

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

Asset ManagerHedge FundBank
All Firms
🇱🇺 CSSF Guidance high

Circular CSSF 26/911

ESMA Guidelines on stress test scenarios under Article 28 of the Money Market Fund Regulation – Update 2025 (ESMA50-481369926-30585)

AI Analysis

Circular CSSF 26/911 informs Luxembourg money market fund (MMF) managers that the CSSF is integrating ESMA’s 2025 update of the stress test scenarios under Article 28 of the Money Market Fund Regulation (MMFR), and that these new ESMA Guidelines now form part of the Luxembourg supervisory expectations. The circular repeals and replaces Circular CSSF 25/877 as of 26 May 2026 and requires MMFs and their managers to apply the 2025 stress test parameters for MMF reporting from the reporting date 30 June 2026 onwards, driving immediate model, data, and reporting changes.

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

Asset ManagerBankHedge Fund
🇱🇺 CSSF Enforcement low

Law of 5 May 2026 (only in French)

1° amending:(a) the Law of 5 April 1993 on the financial sector, as amended;(b) the Law of 17 December 2010 relating to undertakings for collective investment, as amended;(c) the Law of 18 December 2015 on the failure of credit institutions and certain investment firms, as amended;(d) the Law of 15 March 2016 on OTC derivatives, central counterparties and trade repositories and amending different laws relating to financial services, as amended;2° transposing:(a) Directive (EU) 2024/1619 of th...

Bank
🇱🇺 CSSF Guidance high

Circular CSSF 26/909

Application of the Guidelines of the European Securities and Markets Authority for the criteria on the assessment of knowledge and competence under the Markets in Crypto Assets Regulation (MiCA) (ESMA35-24871704-2922)

AI Analysis

Circular CSSF 26/909 specifies how the CSSF applies ESMA's Guidelines (ESMA35-24871704-2922) for assessing **knowledge and competence** criteria under MiCA, targeting staff involved in crypto-asset services. It matters because it enforces MiCA's staff certification requirements, ensuring Luxembourg CASPs meet EU-wide standards for consumer protection and operational integrity amid the full MiCA rollout on 30 December 2024.

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

Crypto ExchangeBankFintech
Payment Provider
🇱🇺 CSSF Enforcement medium

Administrative sanction of 1 April 2026

Administrative sanction imposed on BigRep SE

AI Analysis

The CSSF imposed a €20,000 administrative fine on BigRep SE on 1 April 2026 for failing to comply with a CSSF order to publish, disseminate, store on the Officially Appointed Mechanism (OAM), and file its half-yearly financial report as of 30 June 2025, under the Luxembourg Transparency Law of 11 January 2008. This sanction underscores CSSF's strict enforcement of periodic disclosure obligations for issuers with Luxembourg as their home Member State, signaling heightened supervisory scrutiny on timely reporting.

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

All Firms
🇱🇺 CSSF Guidance high

List of professional activities and mandates performed by members of the management body/governing body and by conducting officers (points 105 and 107 of Circular CSSF 18/698) (Updated)

Table listing the professional activities and the mandates performed

AI Analysis

This CSSF publication is an updated table (in XLSX format) listing standardized professional activities and mandates for members of the management body/governing body and conducting officers, as required under points 105 and 107 of Circular CSSF 18/698. It matters because it ensures consistent, transparent reporting of senior personnel roles in Luxembourg investment fund managers (IFMs), supporting governance, conflict-of-interest management, and CSSF supervisory oversight. Compliance professionals must use this list to standardize disclosures in authorization files and ongoing reporting.

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

Asset ManagerBankAll Firms
🇱🇺 CSSF Enforcement high

Administrative sanction of 8 October 2025

Administrative sanction imposed on an investment firm

AI Analysis

The CSSF imposed an administrative sanction on 8 October 2025 against an unnamed investment firm, as detailed in a publication released on 4 March 2026. This enforcement action underscores CSSF's rigorous oversight of investment firms, particularly in areas like AML/CFT compliance, conduct rules, and organizational requirements, serving as a warning for similar entities to strengthen cooperation and internal controls. It matters because it highlights escalating fines for repeated or material breaches, potentially influencing supervisory expectations across Luxembourg's financial sector.

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

Asset ManagerBroker DealerWealth Manager
🇱🇺 CSSF Guidance high

Update of the CSSF FAQ concerning the Luxembourg Law of 17 December 2010 with regard to the portfolio transparency requirements for UCITS ETFs and the holding of ancillary liquid assets

No description available.

AI Analysis

The CSSF has updated its FAQ on portfolio transparency requirements for UCITS ETFs, relaxing disclosure frequency from monthly to quarterly publication of detailed holdings while maintaining daily information sharing with market makers and authorized participants. This change aligns Luxembourg's regulatory framework more closely with Ireland's semi-transparent ETF approach and is designed to attract active asset managers to the Luxembourg domicile by reducing proprietary information exposure.

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

Asset Manager

List of issuers of shares and issuers of sovereign debt (Updated)

For which the CSSF is the relevant competent authority under Regulation (EU) No 236/2012 of the European Parliament and of the Council of 14 March 2012 on short selling and certain aspects of credit default swaps

BankBroker DealerAsset Manager
🇱🇺 CSSF Enforcement high

Administrative sanction of 6 February 2026

Administrative sanction imposed on Corestate Capital Holding S.A.

AI Analysis

The CSSF published an administrative sanction on 6 February 2026 against Corestate Capital Holding S.A., likely for breaches in regulatory compliance such as depositary duties, oversight, or governance under Luxembourg financial laws, marking a repeat enforcement action following a prior sanction in June 2025. This matters for compliance professionals as it underscores CSSF's aggressive enforcement on alternative investment fund managers (AIFMs) and depositaries, signaling heightened scrutiny on safekeeping, oversight, and internal controls to prevent systemic risks in Luxembourg's fund sector. It highlights the regulator's willingness to impose public nominative sanctions, amplifying reputational damage alongside fines.

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

Asset ManagerAll Firms
🇱🇺 CSSF Enforcement high

Administrative sanction of 6 February 2026

Administrative sanction imposed on Corestate Capital Holding S.A.

AI Analysis

The CSSF published an administrative sanction on 6 February 2026 against Corestate Capital Holding S.A., likely imposing a fine for regulatory breaches, marking a repeat enforcement action following a prior sanction on the same entity dated 20 June 2025. This matters as it underscores CSSF's intensified supervisory scrutiny on Luxembourg-based investment managers, particularly regarding governance, asset safekeeping, and oversight duties under AIFM Law, signaling heightened enforcement risks for similar firms. Compliance teams should review it for patterns in depositary and transparency violations evident in recent CSSF cases.

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

Asset ManagerAll Firms
🇱🇺 CSSF Guidance high

The CSSF has updated its FAQ Crypto-Assets - Undertakings for collective investment (previously FAQ Virtual Assets - Undertakings for collective investment) and draws the attention to the following points

No description available.

AI Analysis

The Commission de Surveillance du Secteur Financier (CSSF) has updated its FAQ on crypto-asset investments by undertakings for collective investment, effective February 4, 2026, to align with the EU's Markets in Crypto-Assets Regulation (MiCAR). This update establishes clear investment limits and licensing requirements for UCITS and AIFs investing in crypto-assets, fundamentally reshaping how Luxembourg-regulated funds can structure crypto exposure.

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

Asset ManagerHedge FundFintech
🇱🇺 CSSF Guidance high

FAQ Crypto-Assets – Undertakings for collective investment (Updated)

Version 7 – 04/02/2026

AI Analysis

The CSSF has released Version 7 of its FAQ on Crypto-Assets for Undertakings for Collective Investment, updated on February 4, 2026, to reflect the entry into force of the Markets in Crypto-Assets Regulation (MiCAR). This guidance establishes binding investment limits, authorization requirements, and risk management standards for UCITS and AIFs investing in crypto-assets, fundamentally reshaping how Luxembourg-regulated collective investment schemes can engage with digital assets.

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

Asset ManagerHedge FundFintech
🇱🇺 CSSF Enforcement high

Results of the enforcement of the 2024 financial and non-financial information published by issuers subject to the Transparency Law

Communiqué

AI Analysis

The CSSF's January 2026 enforcement report documents the results of its 2025 examination campaign on 2024 financial and non-financial disclosures by issuers under Luxembourg's Transparency Law. This publication is critical for compliance professionals because it reveals systematic compliance gaps across financial reporting (IFRS), sustainability reporting (ESRS), and Alternative Performance Measures (APMs), with 27% of enforcement decisions resulting in injunctions for non-compliance.

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

All Firms
🇱🇺 CSSF Enforcement medium

Administrative sanction of 12 January 2026

Administrative sanction imposed on BigRep SE

AI Analysis

The CSSF imposed a €10,000 administrative fine on BigRep SE on 12 January 2026 for failing to publish its half-yearly financial report as of 30 June 2025, as required under Article 4 of Luxembourg's Transparency Law of 11 January 2008 (as amended). This enforcement action underscores the CSSF's rigorous supervision of periodic disclosure obligations for issuers with Luxembourg as their home Member State, serving as a reminder of the consequences for non-compliance with transparency requirements. Compliance professionals should note this as evidence of ongoing CSSF scrutiny on timely reporting, with potential fines scaled based on circumstances per Article 26a.

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

All Firms
🇱🇺 CSSF Guidance medium

Circular IML 91/75 (as amended by Circulars CSSF 05/177, 18/697, 21/790, 22/811 and 25/901) (Updated)

Revision and remodelling of the rules to which Luxembourg undertakings governed by the Law of 30 March 1988 on undertakings for collective investment (“UCI”) are subject

AI Analysis

Circular IML 91/75, as amended up to CSSF Circular 25/901, consolidates and modernizes the supervisory framework for Luxembourg Part II UCIs, SIFs, and SICARs, refining rules on diversification, borrowing, risk-spreading, and disclosures while tailoring requirements to investor profiles. It matters because it streamlines fragmented regulations, enhances fund competitiveness, and formalizes CSSF expectations without mandating immediate changes for pre-existing funds, reducing compliance burdens while promoting transparency and flexibility. This update aligns administrative practices with market realities, repealing outdated circulars to eliminate ambiguity.

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

Asset ManagerHedge FundAll Firms
🇱🇺 CSSF Guidance high

Circular CSSF 08/356 (as amended by Circular CSSF 25/901) (Updated)

Rules applicable to undertakings for collective investment when they employ certain techniques and instruments relating to transferable securities and money market instruments

AI Analysis

Circular CSSF 08/356, as amended by Circular CSSF 25/901, establishes detailed rules for Luxembourg undertakings for collective investment (UCIs), including UCITS and alternative investment funds (AIFs), on the use of techniques and instruments relating to transferable securities and money market instruments, such as securities lending, repo transactions, and over-the-counter (OTC) derivatives. It matters because it ensures investor protection, risk management, and market stability by imposing strict eligibility, collateral, and operational requirements, aligning Luxembourg funds with EU standards under UCITS and AIFMD directives. Compliance is critical for Luxembourg-domiciled funds engaging in these activities to avoid regulatory sanctions and operational disruptions.

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

Asset ManagerHedge FundWealth Manager
🇱🇺 CSSF Guidance medium

Circular CSSF 07/325 (as amended by Circulars CSSF 21/765, CSSF 22/827 and CSSF 25/898) (Updated)

Provisions relating to credit institutions and investment firms of EU origin established in Luxembourg by way of branches or exercising activities in Luxembourg by way of free provision of services

AI Analysis

Circular CSSF 07/325, as amended by Circulars CSSF 21/765, CSSF 22/827, and most recently CSSF 25/898, establishes supervisory requirements for EU credit institutions and investment firms operating in Luxembourg via branches or free provision of services (FOPS). It matters for compliance professionals as it defines CSSF's host authority role, notification obligations, reporting, and enforcement powers, ensuring alignment with CRD and MiFID II while adapting to evolving EU rules.

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

BankBroker Dealer
🇱🇺 CSSF Guidance high

Circular CSSF 25/898

Update of Circular CSSF 07/325 on Provisions relating to credit institutions and investment firms of EU origin established in Luxembourg by way of branches or exercising activities in Luxembourg by way of free provision of services, as amended by Circulars CSSF 21/765 and CSSF 22/827

AI Analysis

Circular CSSF 25/898 updates Luxembourg's supervisory framework for EU-origin credit institutions and investment firms operating in Luxembourg through branches or free provision of services. This amendment enhances the self-assessment questionnaire (SAQ) used by the CSSF to align supervisory oversight with current regulatory priorities, particularly adding UCI administration as a new thematic module. The update reflects the CSSF's evolving supervisory focus and requires affected institutions to demonstrate compliance with expanded assessment criteria.

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

BankBroker DealerAsset Manager