The Tool Desk
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This is a general due-diligence guide, not an assessment of a particular fund or personal investment advice. SIF rules and investor eligibility are Luxembourg-focused; confirm the current law, the fund’s offering documents, and the rules that apply where you live.
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Start with the actual fund documents and its regulatory status
Do not assess a SIF from a marketing summary alone. Obtain the current offering document for the fund or compartment, subscription materials, latest audited annual report, and any updates or investor notices. If the investment is offered through a particular share class, obtain that class’s terms: fees, currency, dealing arrangements, and eligibility can differ from the fund-level headline.
Identify the fund’s legal form, base currency, investor restrictions, alternative investment fund manager (AIFM) arrangement, and key service providers. If retail investors can invest, ALFI says a PRIIPs Key Information Document (KID) is required. The offering document and annual report are central disclosure documents, but neither removes the need to check the terms that apply to the specific class you would buy.
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Check the fund against the CSSF’s official list and verify the manager’s relevant authorisation or registration. The CSSF describes prior authorisation requirements for Luxembourg investment vehicles and managers, alongside prudential supervision that includes reporting and inspections. That confirms regulatory status; it does not establish that an investment is appropriate for you or that the fund will achieve its objectives.
Check which legal framework applies to the particular fund. The CSSF published Circular 25/901 on 19 December 2025, consolidating and replacing several earlier circulars and clarifying concepts, investment and borrowing limits, and sales-document expectations. The CSSF said funds authorised before the circular entered into force are not thereby required to change their adopted rules. Do not assume every provision applies identically to a legacy fund: establish its authorisation date and the relevant transitional treatment.
Confirm that you qualify to invest
SIFs are intended for well-informed investors. ALFI describes a route for certain individual investors involving a minimum investment of EUR 100,000, or an assessment of their expertise, experience, and knowledge by a qualifying institution. For that route, the investor must confirm well-informed status in writing. This is an overview, not a substitute for checking the current legal eligibility test and the specific offering terms; eligibility can also depend on the investor category and jurisdiction.
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Rewrite the strategy in plain language before judging whether it is attractive. Identify what the fund may buy, what conditions would trigger purchases or sales, which return drivers it relies on, the expected holding period, and what developments would undermine its investment thesis. Compare that account with the permitted investment policy in the offering document and the actual portfolio described in reports.
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Under Circular 25/901, a SIF sales document should explain the investment policy, objectives and strategies; portfolio composition and asset classes; investment limits and how they are calculated; use of intermediary vehicles; risks; and potential conflicts. The CSSF says the information should be correct, clear, and not misleading so investors can make an informed judgment. Treat that standard as a test of the document: are the limits, discretion, and exposures specific enough to understand, or does the summary leave room for materially different investments?
Look beyond the headline holdings
If the SIF invests through other funds, subsidiaries, or intermediary vehicles, ask for look-through information. A fund name or vehicle label does not tell you what risks sit underneath it. Seek information on the underlying strategy, holdings, expenses, leverage, and concentration, and compare these with the SIF’s stated limits. Circular 25/901 says limits apply to investments made through intermediary vehicles, rather than simply to the intermediary vehicles as labels.
For a strategy focused mainly on less-liquid assets, also establish how significant cash balances may be invested temporarily in liquid assets. A temporary allocation may affect returns or exposures; the sales document should address this where relevant under the circular. Compare such permissions with the fund’s actual portfolio and reporting rather than treating a broad mandate as a description of what it currently owns.
Calculate the cost of owning the share class
Ask for the complete written fee schedule and the latest available realised cost information. Build the total from the investor’s share class and the portfolio beneath it. A headline management-fee percentage leaves out costs that can materially change the amount retained by investors.
- Share-class charges: management fee and any performance fee, including the hurdle, high-water mark, crystallisation frequency, and the treatment of losses before a fee can be earned again.
- Fund expenses: administration, depositary, audit, legal, and other expenses charged to the fund.
- Trading and financing: transaction costs, borrowing expenses, and other financing costs.
- Underlying layers: fees and expenses within underlying funds, subsidiaries, or other intermediary vehicles.
Request a worked example showing how performance fees would apply through a loss and subsequent recovery. Ask whether expenses or fee terms differ between share classes or investors, and how transaction costs are measured. Where charges are borne at multiple levels, establish whether a stated total includes those layers or excludes them.
Compare realised total costs for genuinely similar strategies and share classes, not just management-fee rates. CSSF’s 2026 supervisory priorities say thematic reviews will identify fund outliers in overall cost and fee levels, performance fees, and transaction costs. Those priorities do not provide a universal benchmark for what a particular SIF should charge. Without the fund’s complete terms and a meaningful peer comparison, a fee cannot be called fair solely because its headline rate appears low or high.
Map each major risk to the fund’s assets and controls
Read the risk disclosures alongside the portfolio, limits, and valuation policy. A long risk list is not enough: for each material exposure, determine where the risk comes from, how large it could become, who monitors it, and what the fund can do if conditions deteriorate.
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| Risk area | What to establish |
|---|---|
| Market and strategy | How rates, credit spreads, economic cycles, sectors, regions, currencies, and underlying assumptions could affect holdings and expected returns. |
| Concentration and diversification | Largest issuers and assets, correlated positions, look-through exposure, exceptions, and any ramp-up or wind-down periods. |
| Liquidity | Dealing frequency, notice periods, lock-ups, gates, suspensions, side pockets or other available tools, and the time and price likely needed to sell underlying assets. |
| Valuation | Who values assets, how often, which model inputs are used, whether there is independent review, and how stale prices or valuation uncertainty are disclosed. |
| Leverage and financing | Borrowing limits, derivatives, collateral and margin-call exposure, and the effects of falling asset values on the fund. |
| Counterparty and operational | Counterparties, custody and depositary arrangements, delegated functions, third-party dependencies, cyber risks, and business continuity. |
| Conflicts and sustainability claims | Related-party transactions, allocation of investment opportunities and costs, valuation conflicts, and whether sustainability disclosures align with holdings and processes. |
Liquidity deserves particular attention if assets are private or otherwise difficult to sell. Compare how often investors may request redemptions with the time the underlying assets could take to sell. Read the actual rules for notice periods and tools such as gates or suspensions; do not assume that a stated dealing date guarantees full or immediate payment. Ask how cash is managed, how the fund would respond to simultaneous redemption requests, and whether stress scenarios are considered.
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Valuation and liquidity interact. If an asset does not trade often, find out who sets its value, how frequently that value is reviewed, and how uncertainty reaches investors. CSSF’s 2026 priorities highlight liquidity, private-debt credit risk, valuation, leverage and interconnectedness, governance and operational risks, ICT and cyber risks, sustainability disclosures, costs, and financial crime risks. These are supervisory focus areas, not findings that any particular SIF has weak controls.
Understand the limits rather than relying on a label
Circular 25/901 sets risk-spreading guidelines within defined scopes and conditions. For funds marketed to unsophisticated retail investors, it includes a 25% limit for several single-exposure categories and a separate infrastructure limit. For certain funds reserved for well-informed or professional investors, the corresponding limits described in the circular rise to 50% and 70% for the infrastructure category. The circular also permits CSSF derogations when justified and allows fund-specific additional restrictions.
These figures are not a general promise that every SIF uses the same limits or is broadly diversified. Check the fund’s own restrictions, exceptions, look-through exposures, and any ramp-up or wind-down provisions. A legal concentration ceiling can still permit a portfolio whose assets move together or share the same underlying risk.
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 being subject to the stated 70% ceiling used for funds marketed to unsophisticated retail investors. Find the fund’s stated limit and calculation method. Where more than one leverage calculation method applies, request the leverage figure under each method so you can see how the result depends on the calculation.
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Assess the manager, team, and governance
Regulatory status does not establish investment skill. Ask who makes investment decisions, which individuals are essential to the strategy, and what happens if a key person leaves. Look for experience that matches the specific assets, financing structures, and exit routes used by this fund—not merely a long history at the firm.
Request strategy-specific performance history with gross and net returns, realised and unrealised results, losses, benchmark rationale, valuation policy, and attribution. Ask which results belong to the named team and which came from other teams, vehicles, or mandates. A firm-wide track record does not, on its own, demonstrate the performance of the people managing the SIF you are considering. For less-liquid assets, understand how valuation methods affect reported unrealised results.
Review who is responsible for key controls and decisions: the AIFM, depositary, administrator, auditor, valuation agent, investment committee, and delegated managers. Establish who can override a valuation, approve a related-party transaction, or change the strategy, and how those decisions are reviewed and reported. CSSF’s 2026 supervisory programme includes governance and internal controls, risk management, third-party risk, and valuation among its focus areas.
Compare funds on the risks you will actually bear
When comparing SIFs, line up funds with similar mandates and share classes. Compare the investment policy with actual exposures; liquidity and likely holding period; leverage and concentration; valuation methods; all-in costs and performance-fee mechanics; manager and team experience; governance and service providers; and reporting quality. Then examine downside behaviour and how reliable reported valuations are before comparing expected outcomes.
A lower headline fee does not establish better value if the fund has higher expenses elsewhere, different performance-fee terms, or costs inside underlying vehicles. A smoother reported return does not establish lower risk if holdings are valued infrequently or lack observable market prices. Compare what each fund is permitted to do with what it has actually done, and distinguish the team’s relevant record from results produced by others.
Use a decision checklist before subscribing
- Confirm the investment: identify the exact fund, compartment, share class, currency, offering terms, and investor eligibility requirements.
- Verify status: check the fund and relevant manager status with the CSSF, then establish the rules and transitional treatment that apply to this vehicle.
- Test the mandate: summarise permitted assets, return drivers, limits, intermediary vehicles, and the conditions that could change the portfolio.
- Reconcile documents with holdings: use current reports to compare actual exposures, concentrations, leverage, and cash with the strategy description.
- Calculate total costs: include share-class fees, fund expenses, transaction and financing costs, and underlying-vehicle charges; model how performance fees work after losses.
- Plan for a cash need: establish dealing terms, notice, lock-ups, possible gates or suspensions, valuation frequency, and the saleability of underlying assets.
- Test manager evidence: verify who will manage the fund and request attributable, strategy-specific performance information and governance details.
- Decide whether the remaining risks fit: account for your own time horizon, ability to tolerate loss, cash needs, jurisdiction, and tax circumstances.
Pause if the fund’s permitted strategy is materially broader than its pitch, total costs cannot be explained, underlying exposures are opaque, redemption terms do not match your cash needs, valuation methods are unclear, or the claimed track record cannot be attributed to the named team. These are reasons to seek answers before subscribing, not proof by themselves of misconduct.
What cannot be established without the specific SIF
No general framework can determine a particular SIF’s actual fees, expected or historical performance, portfolio risks, redemption access, tax consequences, manager competence, or suitability. Those judgments require current fund documents, verified manager information, and facts about the investor’s circumstances. A SIF’s legal structure and supervision do not resolve those fund-specific questions.
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