The Tool Desk
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Start with the right fund documents and regulatory checks
Get the latest offering document for the fund or compartment and share class you are considering, along with subscription materials, the latest audited annual report and any subsequent updates or investor notices. Make sure you are reading documents for the same share class and compartment that you would buy: costs, currency, eligibility and other terms may differ across them.
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Record the fund’s legal form, base currency, investor eligibility restrictions, AIFM arrangement and key service providers. ALFI identifies the prospectus or offering document and annual report as key SIF disclosure documents. If retail investors can invest, ALFI says a PRIIP Key Information Document (KID) is required. The KID is not a substitute for the complete fund documents.
Check the fund against the CSSF’s official list and verify the relevant authorisation or registration of the manager. The CSSF describes prior authorisation requirements for Luxembourg investment vehicles and managers and prudential supervision through reporting and inspections. These checks help establish regulatory status; they do not verify a strategy’s merit, establish suitability for you or guarantee performance.
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Check which rules apply to this fund
CSSF Circular 25/901 was published on 19 December 2025. It consolidated and replaced several earlier circulars and clarified concepts, investment and borrowing limits, and sales-document expectations. The CSSF said that existing funds authorised before the circular’s entry into force are not thereby required to change their adopted rules. Check the particular fund’s authorisation date and applicable transitional provisions rather than assuming every provision applies identically to every SIF.
Eligibility also needs checking against current law and the offering terms. ALFI describes well-informed investors as including institutional investors, professional investors and certain other investors meeting specified conditions. For certain individual investors, it describes a route involving a minimum investment of EUR 100,000 or an assessment of expertise, experience and knowledge by a qualifying institution; the investor must confirm well-informed status in writing. ALFI does not state a publication date for this overview. Verify the current legal test and the fund’s own eligibility requirements before relying on the route.
Translate the strategy into testable questions
Start by describing the strategy in plain language, without relying on a marketing label. Identify what the fund may buy, what conditions lead it to buy or sell, what return drivers the manager expects, and what holding period the strategy assumes. Then ask what would make the investment thesis fail. If you cannot explain the answer, or the permitted strategy is materially broader than the summary you were given, pause before investing.
Under Circular 25/901, the sales document should set out the investment policy, objectives and strategies; portfolio composition and asset classes; investment limits and the basis used to calculate them; and any use of intermediary vehicles. It should also describe investment risks and potential conflicts. The CSSF’s stated standard is that sales-document information must be correct, clear and not misleading so investors can make an informed judgement about the proposed investment.
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Compare what the fund is allowed to do with what it actually does
Read the permitted strategy and limits alongside the latest portfolio information and annual report. Build a simple comparison for each important exposure:
- Permitted: What assets, markets, sectors, regions, currencies or instruments can the fund use?
- Reported: What does the latest portfolio show, and how recently was it measured?
- Explained: Does the annual report explain why holdings or exposures changed?
- Unclear: What cannot be established from the information supplied, and what should the manager clarify in writing?
Pay attention to discretion that could produce a different portfolio from the one implied by a short strategy summary. A mandate’s limits describe what is permitted, not necessarily what the fund holds now or what it will hold later.
Look through intermediary vehicles
If the SIF invests through other funds or vehicles, ask for enough look-through information to understand their strategies, holdings, expenses, leverage and concentrations. A list of vehicle names alone does not show the underlying exposures. Circular 25/901 says that limits apply to investments made through intermediary vehicles, rather than simply to the intermediary vehicles as labels. Establish how the fund monitors those underlying positions and what information it can obtain.
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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteWhere a strategy is primarily invested in less-liquid assets, examine how significant cash balances may be invested temporarily in liquid assets. Circular 25/901 says the sales document should address this point. Ask what the policy means in practice and how temporary cash holdings could affect the intended exposure.
Calculate the costs at every layer
Ask for the complete fee schedule for the share class and a written explanation of how costs are allocated. A headline management fee cannot tell you the total amount borne by investors. Include charges at the SIF level, transaction expenses and costs inside underlying funds or intermediary vehicles; also examine financing costs where relevant.
| Cost or term | What to request or check |
|---|---|
| Management fee | The rate, calculation base, payment frequency and any class-specific differences. |
| Performance fee | The formula, hurdle, high-water mark, crystallisation frequency and any different treatment across classes or investors. |
| Transaction costs | The latest realised costs, how they are measured, and whether the figures cover the relevant period and portfolio. |
| Fund operating expenses | Administration, depositary, audit, legal and other expenses, including how they are charged or allocated. |
| Underlying and intermediary costs | Fees and expenses charged within other funds or vehicles, and how those charges affect the SIF investor. |
| Financing costs | Borrowing and other financing expenses relevant to the fund’s actual or permitted use of leverage. |
Request a worked example of the performance-fee formula that includes a loss followed by a recovery. It should show how the hurdle and high-water mark, if any, operate, when a fee crystallises, and whether a fee may be charged before prior losses are recovered. Do not infer the answer from a short fee label.
Ask for the latest realised total costs as well as the fee schedule. Compare only funds and share classes with sufficiently similar strategies, periods and cost definitions. CSSF’s 2026 supervisory priorities, published on 31 March 2026, say thematic reviews will identify fund outliers in overall cost and fee levels, performance fees and transaction costs. The CSSF does not set a universal fee benchmark in that source, so the fairness of a particular fee cannot be concluded from its percentage alone; it requires the fund terms and a valid peer comparison.
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Map risks to the assets, liquidity terms and controls
Use the offering document, portfolio information and annual report to identify risks that matter for the actual holdings. A list of generic risk disclosures is less useful than understanding the exposure, the potential effect on the fund and the controls intended to manage it.
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| Risk area | Questions to answer |
|---|---|
| Market and strategy | How could interest rates, credit spreads, economic cycles, sectors, regions, currencies or underlying assumptions affect the assets? |
| Concentration | What are the largest issuer, asset and look-through exposures? Are holdings correlated? Are there exceptions or ramp-up periods? |
| Liquidity | How often can investors deal? What notice periods, lock-ups, gates, suspensions, side pockets or other tools apply? How long might it take to sell underlying assets, and at what price? |
| Valuation | Who prices the assets, how often, using which model inputs, and with what independent review? How are stale prices and valuation uncertainty identified and communicated? |
| Leverage and financing | What borrowing and derivative exposures are permitted? What collateral or margin calls could arise, and how could falling asset values affect the fund? |
| Counterparty and operations | Who are the counterparties and service providers? Which functions are delegated? What dependencies, including cyber and third-party dependencies, could disrupt operations? |
| Conflicts and sustainability claims | How are related-party deals, opportunity allocation, costs and valuation conflicts handled? Do sustainability disclosures correspond to the holdings and stated processes? |
Treat liquidity and valuation as connected questions
For a fund holding private or otherwise less-liquid assets, match the redemption terms to the time and conditions needed to sell those assets. A dealing schedule does not by itself establish that the underlying portfolio can be sold promptly at a reliable price. Find out what restrictions or tools the fund may use in difficult conditions and how its cash management works. Ask for the valuation frequency, methods, responsible parties and review arrangements, then consider how uncertain or infrequent prices could affect reported values and redemption decisions.
CSSF’s 2026 priorities highlight liquidity and private-debt credit risk, valuation, leverage and interconnectedness, governance and operational risks, ICT and cyber risks, sustainability disclosures, and costs. These are areas of supervisory attention, not findings that a particular SIF has inadequate controls. Use them to focus questions on the fund’s own assets and arrangements.
Interpret limits in their legal scope
Circular 25/901 provides specified risk-spreading guidelines for funds marketed to unsophisticated retail investors and describes higher limits for certain funds reserved for well-informed or professional investors. Within the stated scope and conditions, its figures include a 25% limit for several single-exposure categories and a separate infrastructure limit; corresponding limits described for well-informed or professional-only funds rise to 50% and 70% for the infrastructure category. These are legal-framework details, not a promise of broad diversification or a statement that every SIF must use those exact limits. Read the fund’s own limits, exceptions, ramp-up and wind-down terms, and look-through exposures.
For SIFs reserved to well-informed or professional investors, Circular 25/901 says the fund sets its own maximum borrowing limit for investment purposes rather than applying the stated 70% ceiling used for funds marketed to unsophisticated retail investors. Find the fund’s actual maximum and the method used to calculate it. Where applicable, request leverage figures under more than one calculation method so that a single measure does not obscure the exposure.
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Assess the manager and the governance behind the strategy
Verify the relevant manager’s regulatory status with the CSSF, then assess capability separately. Authorisation or registration is not evidence that a manager has successfully executed this particular strategy. Ask who makes investment decisions, how responsibilities are divided, and how dependent the fund is on key individuals. Consider what would happen to the process if a central portfolio manager or decision-maker left.
Request performance information specific to the strategy and the named team. It should distinguish gross from net returns and realised from unrealised results, explain losses and exits, state the benchmark rationale and valuation policy, and show what drove results. A broad firm-level history is not proof that the named team achieved those outcomes or that the current fund will behave similarly. Check whether the evidence covers comparable assets, leverage and market conditions.
Identify who oversees key decisions
Map the fund’s AIFM, depositary, administrator, auditor, valuation agent, investment committee and any delegated managers. For each, determine the assigned role and how oversight is performed. Ask who can override valuations, approve related-party transactions or change the strategy. Understand where responsibility sits if the manager delegates portfolio management or an operational function.
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Compare SIFs on matched terms
A useful comparison starts by aligning funds that pursue sufficiently similar strategies. Then compare the following attributes using documents for the same period and, where possible, the same share-class basis:
- Mandate and actual exposure: permitted assets and limits against reported holdings, including look-through positions.
- Liquidity and holding period: investor dealing terms against the time and conditions needed to sell the underlying portfolio.
- Leverage and concentration: permitted and reported exposure, calculation methods, exceptions and correlated risks.
- Valuation: frequency, methods, review, treatment of uncertainty and the reliability of the underlying information.
- All-in costs: management and performance fees, transaction costs, operating expenses, financing and underlying-vehicle charges.
- Manager and alignment: strategy-specific team experience, decision-making continuity and the clarity of performance evidence.
- Governance and reporting: service-provider roles, controls, conflicts and the usefulness and timeliness of investor information.
- Downside behaviour: losses, drawdowns and recovery evidence relevant to comparable assets and conditions, rather than smoothness of reported results alone.
Do not rank funds by a lower headline fee or smoother reported return in isolation. Consider expected outcomes only after accounting for risk, costs, liquidity and the reliability of valuations. If a material comparison depends on information one manager will not provide, record that as an unresolved difference rather than treating the funds as equivalent.
Use a written decision checklist before subscribing
- Confirm the exact investment: record the fund, compartment, share class, currency, current document versions and your eligibility under current law and the offering terms.
- Write down the strategy: state the intended assets, return drivers, expected holding period and conditions that could invalidate the thesis.
- Reconcile the mandate and portfolio: compare permitted exposures with the latest holdings and report; seek look-through information for intermediary vehicles.
- Build the all-in cost picture: use the fee schedule and latest realised costs, including transaction, operating, financing and underlying-vehicle expenses.
- Test adverse conditions: examine how liquidity tools, valuation uncertainty, leverage, concentration and counterparties could affect the fund and your ability to exit.
- Verify people and oversight: check regulatory status, team-specific evidence, key-person dependence, service-provider responsibilities and conflict controls.
- Resolve material gaps: request written answers where documents leave strategy, fees, valuation, liquidity or governance unclear; do not substitute assumptions for missing information.
- Decide whether the terms fit your circumstances: consider your own time horizon, capacity for loss, liquidity needs, tax position and jurisdiction with appropriately qualified advice where needed.
No general framework can establish a particular SIF’s actual fees, performance, redemption access, tax treatment, manager competence or suitability without the current fund documents, verified manager information and details of the investor’s circumstances. The framework here is Luxembourg-focused; confirm the legal and regulatory position applicable to the fund and to you.
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