The Cayman master-feeder fund, drawn out
Why there are two feeders, what the master actually does, where the manager sits, and which entity in the chart carries the economic substance obligation.
Investors are separated by tax profile, not by strategy. Both feeders hold the same portfolio through a single trading vehicle.
- Capital in
- Investors subscribe to the feeder that matches their tax profile; each feeder subscribes into the master.
- Trading
- The master executes the whole strategy, so both feeders share identical performance net of their own expenses.
- Fees out
- Management and performance fees are paid to the investment manager under the IMA, usually charged at feeder level.
- Reporting
- Audited financials filed with CIMA annually, plus the fund annual return, FATCA and CRS through the administrator.
Why two feeders at all
The strategy does not need two funds. The investor base does. US taxable investors want partnership treatment and a K-1, which a Delaware LP gives them. US tax-exempt investors would be exposed to unrelated business taxable income if the fund used leverage and they held it directly, so they invest through a corporate blocker — the Cayman feeder. Non-US investors use the same Cayman feeder to stay clear of US filing obligations.
Both feeders then invest into one master fund, which trades. One portfolio, one prime broker, one track record, two tax wrappers.
Registration: which Act applies
An open-ended vehicle whose participants can redeem at their option is a mutual fund and registers with CIMA under the Mutual Funds Act (2025 Revision). A closed-ended vehicle registers under the Private Funds Act. Getting this wrong is a regulatory breach on day one, not a technicality — the filings, audits and deadlines differ.
Registration brings ongoing duties: audited financial statements signed off by a CIMA-approved local auditor, the fund annual return, AML compliance officer, money laundering reporting officer and deputy, and operator (director) registration.
Economic substance sits with the manager, not the fund
This is the single most misunderstood point in Cayman structuring. Investment funds are excluded from the definition of relevant entity under the economic substance regime; they file an economic substance notification confirming that status and nothing further.
The investment manager is different. If it conducts fund management business from Cayman, it is a relevant entity and must satisfy the full test: core income-generating activities conducted in Cayman, adequate people, premises and expenditure, and being directed and managed there. A Cayman manager entity with a nameplate and offshore decision-making is the exposure — which is why many groups deliberately place the manager in Delaware, London, Dubai or Singapore instead and keep Cayman for the fund vehicles alone.
What a launch actually costs in time
Documentation — offering memorandum, articles, IMA, administration and prime brokerage agreements, subscription documents — is typically six to ten weeks with a responsive manager. CIMA registration follows once directors are registered and the auditor is engaged. Bank and prime broker onboarding, not the regulator, is usually the critical path.
- Assuming the fund's economic substance exemption covers the Cayman investment manager. It does not.
- Registering a closed-ended vehicle under the Mutual Funds Act instead of the Private Funds Act.
- Launching a master-feeder for a small, single-profile investor base — one standalone fund would have been cheaper and faster.
- Side pockets and illiquid allocations at master level not properly documented between feeders.
- FATCA and CRS classification and reporting left entirely to the administrator without director oversight.
- Prime broker and bank onboarding started after documentation is finished rather than in parallel.
Seen in practice
How a SOPARFI sits between an operating group and its shareholders, why the participation exemption is the whole point, and the conditions that decide whether a European exit is taxed or not.
How DIFC, ADGM and DMCC entities sit under a UAE holding or foundation, what the 0% Qualifying Free Zone Person status actually requires, and how groups lose it.
The segregation logic behind one holding company and several single-asset SPVs, the reduced substance test for pure equity holding, and what the 2025 beneficial ownership access reforms changed.