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What Is a MAM Account

A MAM account is a master account whose orders are split across investors' own separate accounts, by equity, by lot or by percent, so that the money stays apart and only the order is shared. This paper shows the account as a manifold, one real EURUSD order of ten lots cut by equity into three accounts and their three results, the three cutting rules, and the manager's tool where the allocation is set. After reading it you can tell a MAM from a PAMM by where the money sits, and work out what slice of an order and of its result lands in an account.

Difficulty
Intermediate
Reading time
5 min
Pages
8
Reviewed by
Saman Rahbar

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A MAM account, in five lines

A MAM account is a master account whose orders are split across investors' own separate accounts. The letters stand for multi-account manager: one order goes in, and one slice per account comes out. The money stays in each investor's own account at the broker and is never pooled. The split is by equity, by lot, or by a fixed percent, set in the manager's tool. On the real trade of 25 August 2026, EURUSD bought at 1.16526 and closed at 1.16695, 169.00 a lot, the master's 10.00 lots were dealt out as 5, 3 and 2 lots, a lot being the unit a trade is sized in, to three accounts. A PAMM pools the money and splits the result; a MAM keeps the money apart and splits the order.

A manifold

Picture a manifold: one pipe in, three pipes out, each with its own valve. The manager turns one tap, an order for 10.00 lots, and the manifold sends a share down each pipe, 5.00, 3.00 and 2.00 lots in this example, set by the valves, into each investor's own tank. The tanks are the investors' own accounts, and nothing flows between them. Only the order is split, never the money, and closing a valve, which is leaving the MAM, stops the flow into that tank alone.

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