Structures · room 04 of 11
Parallel vehicles.
Vehicles standing abreast into the same transaction, held together by a document no rulebook writes and no regulator sees. A register splits on two different questions at once, one about the wrapper and one about what the wrapper may hold, and a feeder answers only the first of them.
01 · The structure
Parallel and blocker
A parallel answers a wrapper problem. A blocker answers a characterisation problem.
They are used together often enough that they are treated as one decision. They are two decisions, taken for two reasons, and they fail separately.
Three definitions are needed before anything else on this page can be read. Two of them are structures. The third is the structure most managers reach for first, and it is the one that answers only half of the question.
- A parallel vehicle
One of two or more funds investing side by side into each transaction in fixed proportions, rather than pooling into a common master. Each parallel is a fund in its own right: its own investors, its own tier, its own domicile, its own constitution, its own register, its own administrator, its own forum, and its own direct path to the asset. What holds them together is not a vehicle. It is a co-ordination agreement binding each of them to invest and divest in agreed ratios, at the same price and at the same time, and to bear transaction cost pro rata.
- A blocker
A corporate vehicle interposed on one leg of the structure so that the character of the income stops at the blocker. The blocker bears its own tax, and what reaches the investor behind it is the blocker's post-tax profit rather than the underlying receipt. A blocker is a layer, not a fund. It is added because one population cannot hold what the others hold, and the reason for it is stated separately from the reason for the parallel.
- A feeder
A fund holding one asset, its participation in a master fund that runs the strategy and holds the portfolio. A feeder is constituted where its own population needs it to be, which is why it answers a wrapper requirement cleanly. It does not change what the master holds, or what the master receives, or the position of the entity that actually receives the income. That is the seam, and it is where this page begins.
A wrapper question and an access question look identical in a term sheet. They separate at the first distribution, and by then the vehicles are formed.
02 · The topology
The drawn structure
Three funds stand abreast. One document makes them behave as one programme.
Three investor populations, three vehicles, one acquisition entity, and one contract holding all of it together. Nothing in any of the three constitutions makes the other two move.
The populations are described by what each requires: a locally seated wrapper; a wrapper the population's own regime obliges it to use; and, on the third leg, an inability to hold the interest directly at all.
The carried interest has two shapes here. The difference is invisible in a term sheet and decisive at the first distribution, so it is settled at the drawing.
A single carried-interest partner participates at each parallel, and an aggregation mechanic computes the manager's share across the whole programme. The hurdle is tested once, against contributed capital taken as a whole. Clawback is then owed once, by one vehicle, on one computation, and the obligation is fundable because it sits where the economics sat.
Each parallel computes its own waterfall against its own hurdle and its own contributed capital. The manager can be in carry on one parallel while another is under water. Clawback is owed by each carry vehicle separately, at the end of life, which is the moment it is least fundable and the moment the investors who are owed it have the fewest remaining ways to compel it.
Both shapes are ordinary and both are defensible. Only one of them was chosen on purpose, and the investors can tell which at the first distribution.
03 · What each wrapper answers
Requirement and wrapper
A feeder inherits what sits beneath it. A parallel inherits nothing.
Four wrappers and five requirements. Read each row across before reading any column down: a feeder and a parallel answer two of the five the same way and part company on the other three.
| By requirement · by wrapper | One pooled vehicle | A feeder into one master | A parallel vehicle | A parallel behind a blocker |
|---|---|---|---|---|
| A wrapper seated where the investor requires it | One vehicle has one domicile. Choosing it for one population chooses against the other. | Answered. Each feeder is constituted where its own population needs it and holds a single asset, its interest in the master. | Answered, at the cost of a second constitution, a second register, a second administrator and a second audit. | Answered, and a further seat is added that then has to be defended on its own facts. |
| A holding the investor is permitted to hold at all | The population that cannot hold it is excluded, or the vehicle is shaped for that population and every other investor lives inside the shape. | A feeder changes the instrument the investor holds. It does not change what the vehicle beneath it holds or receives. | Answered where the parallel can take the asset in a form its own population accepts. | Answered by interposing a company. That is the point of the blocker, and it is also the whole of its cost. |
| Access that turns on which entity receives the income | One entity receives, and its own position is the only position in the structure. | A feeder inherits the position of the entity beneath it. Interposing a wrapper does not by itself create access that the entity actually receiving the income does not have. | Each parallel receives in its own name, so each is a separate question with a separate answer. | The blocker receives, and the blocker's own position is then the one that has to be established and held for every year it is claimed. |
| Income whose character must stop before it arrives | Where the vehicle passes character through, it reaches every participant in it. There is no leg on which it stops. | A feeder is not built to stop it. It re-presents what it received, under its own terms. | A parallel is not built to stop it either. A parallel changes the wrapper, not what the wrapper holds. | Stopping it is the blocker's whole function, and the only reason to accept the layer. |
| The same asset, the same timing, the same economics | True by construction. Where the wrapper question does not arise, one vehicle is the answer and the rest of this page is unnecessary. | True by construction. One portfolio, one strategy, one set of assets, presented through two or more doors. | Held by a document rather than by construction. Ratio, price and timing are contractual, and true only to the extent they were written. | As the parallel, with one further entity whose own timetable has to keep pace with the closing. |
04 · When it is reached for
The occasion
One asset is held three ways. That is not three funds wearing one name.
Three conditions have to hold together before parallels are the answer: the wrapper requirements are irreconcilable, the asset and the timing are identical, and the economics are the same for every population. Where one of the three fails, so does the structure.
They are the wrong answer in four situations, and every one of the four is knowable in week one.
- Where the economics differ
The populations want different assets, different timing or a different share of the outcome. At that point the parallels are pretending, and the honest structure is two funds raised as two funds. A programme that begins by describing itself as one thing and computing itself as two will be read as one thing by every investor and as two by the administrator.
- Where the ratio cannot be enforced
A parallel that closes late buys into a live portfolio, and somebody has to price the difference. If the co-ordination agreement does not say who prices it, on what basis and by when, the ratio is a habit rather than a term. Habits are what a departing investor's counsel tests first, because a habit has no defence written down anywhere.
- Where the running cost is disproportionate
Three constitutions, three registers, three administrators, three audits and three sets of onboarding. On a programme of the wrong size that cost is the whole structural argument against parallels, and it is a number the manager can produce before a single document is drafted.
- Where the blocker came from the precedent
A blocker that does nothing but sit is a cost with a tax risk attached to it. A corporate layer is added because a named population cannot hold what the others hold, and if that sentence cannot be completed with a population and a reason, the layer is being carried because the last structure had one.
Every one of the four is a document fact or an arithmetic fact. Both kinds are cheap in week one and unavailable in week eight.
05 · The binding constraints
What binds
Most of what holds this structure together has no home in any rulebook.
Eight constraints bind a parallel programme. Two are created by rules a regulator in these centres publishes and anyone can read. One is created by a regime somewhere else entirely. The other five are created by documents your own side drafts, and they bind exactly as hard.
Each parallel is constituted, tiered, domiciled, documented and offered on its own. The tier ladder and the domicile axis apply to the vehicle being offered, never to the programme behind it, so three parallels are three answers on each axis and nothing carries between them. What a centre has done about one parallel says nothing at all about another. This surfaces immediately, in the cost of the documents, and again at every close.
The ratio has to be mechanical rather than discretionary. Discretion in allocating a transaction between vehicles the same manager controls is a conflict, and it recurs on every transaction rather than arising once. The duty to identify and address it is the manager's own and is owed to its own regulator, and no advisory committee discharges it. This surfaces at advisory committee review, and again as a standing question at the next raise, where it is asked of every manager running more than one vehicle.
An entity claiming a position by reference to where it is registered has to be able to show that the decisions are taken there, by people who can take them, on evidence that was created at the time. Which regime reaches a given blocker, and what it requires, turns on that entity and on what is done inside it, never on the topology drawn above it. This surfaces years after formation, and it fails retrospectively for every year the position was claimed.
Carried interest across parallels needs an express aggregation mechanic. Absent a common carry vehicle or a contractual aggregation, each parallel computes its own waterfall and nothing reconciles them. The mechanic is a document term and nothing supplies it by default. This surfaces at the first distribution.
The obligation is created by each constitution separately, so it is owed per vehicle unless the carry vehicle is common to the programme. Three obligations, three computations, three counterparties, and no automatic set-off between them. This surfaces at the end of life, when it is least fundable.
A parallel that has not closed when a transaction does needs an equalisation or an exclusion mechanic. It has one if the co-ordination agreement says so, and it has nothing if the agreement is silent. This surfaces on the first transaction that closes before all of the parallels have, which is ordinarily the first one.
A transfer inside one parallel changes that register and no other. Each vehicle carries its own transfer provisions, its own pre-emption, its own consent thresholds and its own approval calendar, and they were drafted at different moments by people answering different questions. This surfaces on a secondary sale by an investor mid-life, when the transferee discovers what it is joining and what it is not.
Nothing in any of the constitutions creates a report across the programme. The administrator builds one because it was asked to, on a basis nobody has agreed in writing and nobody has audited. This surfaces at the first quarterly report after the second parallel closes, and it surfaces again whenever the two reports disagree.
Three of the eight are read from a body of rules, and only two of those are read here. The other five are read from documents that do not exist until somebody draws them.
06 · Where it breaks
Failure
None of these is a drafting error. Each is a decision nobody made.
Five failure points, in the order they are ordinarily met. The first is the one that makes the other four unrecoverable, which is why it carries the mark.
- 01 The co-ordination agreement is signed after the first transaction From that point the ratios rest on custom. Custom is the first thing a departing investor's counsel attacks, and there is no instrument to hold up against it. Everything else on this list is survivable while this document exists and is dated before the first close. Almost none of it is survivable afterwards.
- 02 A blocker with no people, no premises and no decisions where it is registered The assumption the entire split was built on fails, and it fails for every year in which the position was taken rather than from the year it was noticed. The substance question is asked at formation, while it can still be answered by arrangements. Asked at examination it is no longer a question. It is a finding.
- 03 One parallel cannot participate in a closing Its holder cap is reached, its classification work on a new subscriber is unfinished, or its own consent process is slower than the others. The ratio breaks mid-transaction, and either the remaining parallels take the excess, which changes every investor's exposure to the asset, or the transaction is resized in front of the counterparty.
- 04 Carried interest computed per vehicle where the investors believed it was computed across the programme Discovered at the first distribution, by an investor, in a model. Nobody misled anyone: two documents were drafted separately and each is internally correct. There is no drafting fix available after the fact, because the fix is a transfer of value from one set of investors to another.
- 05 A parallel constituted where the acquisition documents name a different forum Enforcement then runs through a chain nobody drew, and the governing-law clause is the least informative line in the bundle about it. The last mile is mapped at security and enforcement.
Not one of the five is found in the week it is created. All five are visible on the plate above, in the week it is drawn.
07 · ADGM and the DIFC
The two centres
Both axes are settled per vehicle. In a parallel structure every question below is asked three times.
Five things can be said about a parallel structure in these two centres from published text. Each is asked once per vehicle, and the answers differ between them. That difference is the whole of the diligence.
Tier is the first axis and domicile is the second, and the two are independent. Both apply per vehicle. A parallel constituted outside the DIFC is a Foreign Fund to the Centre: it can still be offered to an investor in the Centre, but it arrives through the rules governing that offer rather than by belonging to the tree. ADGM asks the same question in its own words, as whether the fund is seated here or only offered here.
An Authorised Firm carries its own obligation to identify and address conflicts. In a parallel structure the conflict is structural rather than occasional: the manager decides how much of each transaction each vehicle it controls receives, and it decides it repeatedly. The duty is owed to the regulator whatever the advisory committees have agreed and whatever the co-ordination agreement says.
Which party bears responsibility for the underlying relationship under the applicable anti-money-laundering regime is separate from any authorisation question, and a structure leaving it unallocated has a real gap. That reading stands on both sides of the Gulf. In a parallel structure the question is asked once per vehicle, and it is answered by silence more often than in any other topology in this family.
Classification attaches to the entity that signs, not to the principal behind it. A family holding capital through a substantial corporate vehicle may find the vehicle, not the principal, is what gets classified. Which entity signs matters, and it matters before it is signed. The same underlying investor may therefore classify differently depending on which parallel it enters and through which entity it enters.
A structure with one parallel inside a centre and one outside it stands in two legal places, and every question on this page is then asked on both sides of that line. What the boundary between the zone and the country around it does to a chain is drawn at holding chains.
Where the reading stops · August 2026
The obvious alternative to three constitutions is one registered vehicle with statutory segregation between its cells. Whether either centre offers that form, and what the segregation would be worth against a creditor of another cell, stay open here until both are read from primary text.
08 · Where our part ends
The line
We draw the three vehicles. Your counsel constitutes them.
Why a wrapper is needed, and whether a blocker achieves what it is being asked to achieve, are tax and legal questions. Our structural analysis provides the framework within which appointed tax and legal counsel answer them, and a structural page that answered them itself would be worth less, not more. Six items stay with the client and its appointed advisers, and the last row below is what the room hands them.
For each entity, each income type and each jurisdiction pair, on the facts as they will actually be. This page names the question and puts it to the counsel who answers it.
Which regime reaches the blocker, what it requires, and the arrangements for meeting it from the first year rather than the year it is examined.
Drafting and negotiation of each parallel constitution and of the co-ordination agreement, including the ratio, the equalisation mechanic and what happens to a parallel that cannot close.
The aggregation across parallels, its computation, and its consequences for the named individuals who hold it.
Counsel in the jurisdiction of each parallel and of each blocker, and on what may lawfully be communicated, to whom, in every country the programme will touch.
Who bears the underlying anti-money-laundering relationship for each vehicle, recorded before the first subscription rather than discovered at the first examination.
What this room ends on: the three vehicles drawn beside each other, the document that holds the ratio marked, each constraint set against the instrument or the document that creates it, and the constraints with no home in any rulebook named as such.
We draw the three vehicles beside each other, mark which document holds the ratio, and state plainly which of the constraints above has no home in any rulebook. The decision, the drafting and the signature stay where they are.
Read at the Collective Investment Law and Rules · August 2026