Choosing a Fund Management Model
The market offers a broker several ways to engage traders as money managers and attract capital from investors who want exposure without trading themselves.
According to the Social Trading Platform Market Report cited by GlobeNewswire, the global market for managed investment and social trading products was valued at $2.62 billion in 2025 and is projected to reach $3.77 billion by 2030.
PAMM Forex, MAM, and LAMM are the three models behind that — each structured differently, and a brokerage isn’t limited to picking just one; many run more than one model side by side to serve different segments.
PAMM: Percentage Allocation Management Module
In a PAMM setup, investor funds are pooled into a single master account controlled by the manager. Every trade the manager places is executed once, on the pooled balance, and the resulting profit or loss is split among investors in proportion to their share of the pool.
Because trading happens on one shared account, an investor doesn’t see individual trades tied to their own funds — they see the value of their allocation move up or down through a client portal, reflecting their share of the pool’s overall result. There’s no separate open position, entry price, or P&L attached to their account specifically; it’s a proportional slice of one outcome.
Leverage, position sizing, and instrument selection are all determined at the pool level by the manager — every investor in the same PAMM account is exposed identically, scaled only by allocation size. Some per-investor PAMM risk controls do exist on top of the pooled exposure — for example, an individual stop loss, defined as a percentage or amount of the investor’s initial deposit rather than the current balance. Once that level is hit, the investor is withdrawn from the pool automatically and receives whatever their settled value is at that point.
PAMM forex fees explained simply come down to fees charged on the pool’s combined result. For example, a typical management fee on the pooled assets under management, and a performance fee on the pool’s profit, plus less common charges, such as entry, deposit, and withdrawal fees. The best PAMM solutions provide brokers and money managers with a plenty of fee option.
MAM: Multi-Account Manager
A MAM setup starts from a different mechanic: instead of trading a single pooled balance, the manager’s trades are distributed as separate transactions to each investor’s own sub-account.
Distribution is automatic and strictly proportional to each investor’s allocated amount — the manager doesn’t decide how much volume goes to which investor; that split is handled by the allocation logic itself. What lands on the investor’s account is a real sub-trade: it carries its own volume, its own opening and closing price, and its own P&L. To the investor, it looks exactly as if the trade were placed directly on their account, rather than a slice of a shared outcome.
This structure gives MAM more flexibility than PAMM, though not fully per-investor by default. Each investor has a distinct sub-account, but leverage, margin rate, and available instruments are typically set at the MT5 group level that the sub-account belongs to — so investors sharing a group share those settings, rather than each one configuring them individually out of the box. Reaching truly individual settings for a specific investor means placing them in their own dedicated group, which is manual server-side administration rather than a built-in per-account feature — and it’s this manual group management, more than the sub-account structure itself, that adds operational complexity as the number of investors grows.
LAMM: Lot Allocation Management Module
LAMM allocates by lot size rather than by percentage of capital. Instead of splitting a trade proportionally to each investor’s share of total funds, the manager’s trade is replicated across sub-accounts based on a lot size set per investor.
This suits investors who want direct control over position size rather than a proportional slice of a pool — an investor can specify exactly how many lots they want mirrored, independent of how their capital compares to other investors in the same strategy. The distinction from MAM is in the allocation logic itself: MAM replicates trades while preserving each investor’s individual risk parameters, whereas LAMM allocates by a lot ratio the investor sets directly.
Comparing the Three Models
| PAMM | MAM | LAMM | |
|---|---|---|---|
| Allocation method | Proportional share of one pooled account | Trade replicated to sub-accounts, split by allocation | Trade replicated to sub-accounts, split by lot size |
| Visible sub-account trades | No — portal shows pooled result only | Yes — real trades with own volume/P&L | Yes — real trades with own volume/P&L |
| Per-investor risk settings options | High | Average | Average |
| Implementation complexity for the broker | Low | Low | High |
Which Model Fits Which Type of Brokerage
A brokerage prioritising simplicity and a straightforward investor onboarding flow — where investors are comfortable following a manager’s aggregate performance without needing individual trade visibility — tends to fit PAMM well. PAMM integration is also suitable when the broker wants to add the investment layer on top of an existing trading platform without changing how client trading accounts are managed underneath.
A brokerage serving investors who expect to see real trades on their own account is well served by MAM. Individual leverage and risk settings are also possible, but only by placing an investor in their own dedicated MT5 group — which adds administrative work rather than being a built-in per-account setting.
A brokerage working with investors who think in terms of position size rather than capital share — often more experienced traders replicating a strategy at their own scale — is a closer fit for LAMM.
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