Fund Structures
How a Private Fund Limited Partnership Is Structured
Capital accounts, subscriptions, withdrawal terms, and the documents that govern them — a map of the machinery behind a private fund.
A private fund is a set of contracts as much as it is a pool of money. Knowing the moving parts makes the offering documents far less forbidding.
The core documents
- The Limited Partnership Agreement (LPA). The constitution of the fund. It defines the partners' rights, the general partner's powers, how profits and losses are allocated, and the withdrawal terms. Where any other document disagrees with the LPA, the LPA generally governs.
- The Private Placement Memorandum (PPM). The disclosure document. It describes the strategy, the risks, the fees, the conflicts of interest, and the service providers. Its purpose is to ensure an investor cannot later say they were not told.
- The Subscription Agreement. The contract by which an investor commits capital and makes representations about their eligibility — accredited investor status, qualified client status, source of funds, and tax status.
Capital accounts: how ownership is tracked
Many private funds do not issue shares. Instead each investor has a capital account — a running balance recording their contributions, their share of profits and losses, and their withdrawals.
When the fund gains or loses value in a period, the change is allocated across capital accounts in proportion to their balances. This is why two investors in the same fund can experience different returns: someone who subscribed in March has a different starting point, and a different high-water mark, from someone who subscribed in January.
A consequence worth understanding: the fund's headline return since inception is not necessarily your return. Your capital account depends on when you came in. Always ask what your own account shows.
Getting in: the subscription process
A typical sequence runs: review of the PPM and LPA; completion of the subscription agreement; verification of eligibility; funds wired to the fund's account at the administrator or custodian; admission as a limited partner effective at the start of the next period, usually the first of a month.
Under Rule 506(c) of Regulation D — the exemption that permits a fund to advertise publicly — the fund must take reasonable steps to verify that each investor is accredited. Self-certification is not sufficient. Verification typically means reviewing tax documents, brokerage or bank statements, or accepting a written confirmation from a licensed attorney, CPA, registered broker-dealer, or investment adviser. Funds charging a performance allocation must separately confirm qualified client status.
Getting out: withdrawal mechanics
Liquidity terms vary widely, and they are among the most important terms in the entire document set.
- Withdrawal frequency. Monthly, quarterly, or annually. This sets when you may exit at all.
- Notice period. How far in advance written notice must be given — often 15, 30, 60 or 90 days. A quarterly fund with 90 days' notice can mean waiting nearly six months from decision to cash.
- Lock-up. An initial period during which capital cannot be withdrawn at all, or only with a penalty.
- Gates. A cap on total withdrawals in any single period, designed to prevent forced liquidation of the portfolio when many investors exit at once.
- Suspension rights. Circumstances under which the general partner may halt withdrawals entirely, typically where assets cannot be fairly valued or sold in an orderly way.
None of these terms is inherently unfavourable — they exist to protect remaining investors from the costs imposed by exiting ones. But they must be understood before subscribing, not discovered afterwards.
Why the structure looks like this
The limited partnership has endured because it solves a specific problem elegantly: it lets passive investors commit capital with capped downside while giving a single controlling party the authority to act decisively, backed by unlimited liability for doing so badly. Nearly everything else in the structure — the capital accounts, the allocation mechanics, the withdrawal terms — exists to make that basic bargain work fairly among investors who arrive and leave at different times.
Related: Copernicus Hedge Fund LP publishes a separate library of investor-facing articles on fund-of-funds structures, manager due diligence, and allocation. Read them at copernicushedgefund.com/insights.