Copy trading, social trading, signals, PAMM and MAM differ on two questions: whose decision is it, and whose money is it. A self-copy trade copier repeats your own orders across your own accounts; social copy trading, mirror trading and signal services put someone else's decisions into your account; MAM (multi-account manager) and power-of-attorney accounts let a manager trade your separate account; and PAMM (percent allocation management module) pools your money with other investors under one manager. Copy trading itself only means that orders placed in one account are repeated automatically in others, so the label says nothing about who decides.
Only a self-copy trade copier keeps both the decision and the accounts with the same person, which is why many prop firms that ban third-party signals and account sharing still permit copying across a trader's own accounts. Every licence requirement, fee model and firm rule for the other six arrangements follows from who decides and who holds the money.
What separates copy trading, social trading, signals and PAMM?
The decision owner and the money owner separate them, and crossing the two places each arrangement, seen from the participant's side, in one quadrant of a two-by-two map:
- Your decision, your money in your own accounts: a self-copy trade copier.
- Someone else's decision, your money in your own account: social copy trading, mirror trading, signal services, MAM and managed accounts under power of attorney.
- Someone else's decision, money pooled with other investors: a PAMM account from the investor's side, and a commodity pool.
- Your decision, other people's money: you are the manager (of a PAMM or MAM, a paid signal channel or a client account), where registration duties start and prop-firm rules stop you.
The mechanics of copying itself are covered in what copy trading is and how it works.
Who holds the money, who decides and who gets paid in each?
The money stays in the investor's own account in every arrangement except PAMM, the decision stays with the account holder only in self-copying, and payment ranges from a flat software subscription to a share of the profits.
| Arrangement | Who holds the money | Who decides | Who executes | How fees are charged | Typical regulatory treatment |
|---|---|---|---|---|---|
| Self-copy trade copier | You, in your own accounts | You | Copier software, master to your other accounts, sized per account | Software subscription; no profit share | No advice to others; prop-firm rules govern |
| Social copy trading (eToro CopyTrader style) | You, in your own platform account | Another retail trader you chose | The platform, automatically and in proportion | eToro (September 2026): no charge to copy; leaders paid by the platform; ordinary trading costs | UK: portfolio management where the holder gives no clear manual input (FCA); EU: possible MiFID II investment service (ESMA) |
| Mirror trading | You, in your own account | A fixed strategy's author | Platform or broker, automatically | Varies: subscription or broker markup | Covered alongside copy trading by the FCA |
| Signal service | You, in your own account | The signal provider | You by hand, or an EA or bot | Subscription | US futures: paid advice needs CTA registration unless exempt |
| PAMM | Pooled in one master account at a broker | The money manager | Manager trades the pool; broker plugin allocates results by share | Performance, management, entry, deposit and withdrawal fees | US futures: commodity pool, CPO registration unless exempt; elsewhere fund or portfolio-management licensing |
| MAM | Each client, in a separate account | The manager | Plugin splits the manager's block trade across client accounts | Performance and/or management fees | US: CTA plus written power of attorney; UK and EU: portfolio management |
| Managed account (power of attorney) | The client, in their own account | The manager, with written discretion | Manager enters orders directly in the client's account | Negotiated management and/or performance fees | US: NFA Rule 2-8 written authority; CTA unless exempt |
The regulatory column is a summary, not legal advice: exemptions carry conditions and some require filings, as the guide to whether copy trading is legal explains.
Is copy trading the same as social trading or mirror trading?
No: social trading means following other traders' published positions, social copy trading automates that following, and mirror trading automates a fixed strategy, whereas a self-copy trade copier repeats your own orders and involves no other trader. eToro says of its CopyTrader that "Copied trades are replicated to your portfolio in real time" and that "The traders you copy get paid directly as part of our Popular Investor Program." eToro's copy-versus-mirror explainer gives the scaling: a follower who allocates $1,000 to a trader with $10,000 in their account gets a $100 position when that trader opens a $1,000 position.
In an illustrative self-copy setup, a master account buys 1 contract and three follower accounts owned by the same trader, set to ×1, ×2 and ×3, receive 1, 2 and 3 contracts: 6 follower contracts (7 including the master) from one decision.
The UK Financial Conduct Authority describes the older, strategy-based form: "Mirror trading, an evolution of automated trading, simply implements fixed strategies based on trading preferences." Tradency, whose 2012 press release says it has pioneered the method since its inception in 2005, built Mirror Trader, one of the first such systems. Banking compliance uses the term for something unrelated: in January 2017 the FCA fined Deutsche Bank £163,076,224 for anti-money-laundering control failings, after customers used mirror trades through Deutsche Bank's Moscow subsidiary to move more than $6 billion out of Russia.
Does copying other traders actually make money?
The available evidence does not show copying other traders beating the market on average, and in experiments the option to copy raises risk taking. Apesteguia, Oechssler and Weidenholzer (2020), in a laboratory asset-market experiment published in Management Science, found that showing subjects others' success increased their risk taking, adding: "This increase in risk taking is even larger when subjects are provided with the option to directly copy others." Oehler, Horn and Wendt (2016), in the International Review of Financial Analysis, studied 1,084 wikifolio certificates (exchange-listed products tracking social traders' model portfolios) issued between 2012 and November 2013 and found that, measured to the end of 2014, they did not outperform the market on average.
The CFTC's Forex Frauds page, citing quarterly profitability data from US forex dealers, says about two out of three retail forex traders end each quarter in the red, and warns that after subscription costs, fees and taxes, copy traders are still unlikely to make money. eToro's risk warning read "51% of retail investor accounts lose money when trading CFDs with this provider" on 27 September 2026, a figure covering all its CFD accounts, not copiers alone. Widely repeated percentages for how many copy traders lose money have no traceable source, and none of these studies measures self-copying, where no second trader exists. Leaderboard incentives are examined in why copy trading leaderboards favour the riskiest trader, and the wider evidence in does copy trading actually work.
How is a signal service different from copy trading?
A signal service delivers someone else's decision as a message that a person or an EA (expert advisor, a MetaTrader trading script) must turn into an order, whereas a trade copier replicates an order that already exists in a master account. Some signal services execute automatically: MetaTrader 5's built-in Signals service copies a provider's trades straight into subscribers' accounts, works when provider and subscriber use different brokers and charges a fixed subscription with no additional commission, according to the platform's help pages. Automation changes who clicks, not who decides.
The two paths also differ in length, counted in hand-offs (points where the trade passes to another person or system). On the signal path, the provider decides, a message goes out by Telegram, Discord, email or MQL5, the subscriber reads it or an EA parses it, and an order reaches the subscriber's account: three hand-offs, one of them from one person to another. On the copier path, the owner places the order in the master account, the copier server replicates it, and the owner's follower accounts receive it: two hand-offs, all inside one person's accounts.
Prop firms treat third-party signals very differently from self-copying, as why prop firms ban copying signal providers sets out; forex traders running EAs can check which forex prop firms allow copy trading and EAs.
What is the difference between a PAMM and a MAM account?
A PAMM pools investors' money in one account that a manager trades and splits each result by the investors' shares, while a MAM leaves every client's money in a separate account and splits the manager's block trade (one large order placed in a master account) into those accounts by an allocation rule. Both usually run as broker-side plugins sold by vendors such as Brokeree and Plugit Apps. Announcing Brokeree's PAMM for MetaTrader 5 in June 2018, MetaQuotes wrote: "To avoid server overload and execution latency with increasing trading volumes, the solution works with aggregated funds." The same announcement says profits are distributed among investors by the amount each invested, on a configured schedule, and Brokeree's product page lists five fee types: performance, management, entry, deposit and withdrawal.
MetaQuotes' October 2016 announcement of Plugit Apps' MAMM (multi-asset management module) plugin for MetaTrader 5 describes the MAM side: block trades from a master account placed across an unlimited number of investor accounts, with allocation methods named Equity Lot Ratio (MAM), Equity Cash Ratio (PAMM) and Equal Volume. Vendors therefore also use the acronyms as names for allocation formulas, so a broker's own definition matters more than the label.
With illustrative investors A ($10,000), B ($25,000) and C ($65,000), a PAMM merges them into one $100,000 balance and credits 10%, 25% and 65% of every result, while a MAM keeps three separate accounts and splits a 10-contract block into 1.0, 2.5 and 6.5 contracts before rounding.
Why do MAM clients earn different returns on the same trade?
Whole contracts are the reason: a pool can split profit to the cent, but a MAM plugin must round each client's share of a futures block to whole contracts, so clients receiving the same trade earn different percentages. Inputs (illustrative): the same three clients, a block earning $200 per contract ($2,000 on 10 contracts, 2.0% of $100,000) and a 20% performance fee on the pool; MAM figures are before fees. Formulas: PAMM investor P&L (profit and loss) = (deposit ÷ pool) × pool P&L; MAM contracts = block size × client equity ÷ total equity.
| Client | Equity | PAMM gross | PAMM net of 20% fee | MAM exact contracts | MAM rounded down | MAM rounded half up |
|---|---|---|---|---|---|---|
| A | $10,000 | $200 (2.0%) | $160 (1.6%) | 1.0 | 1 contract: $200 (2.000%) | 1 contract: $200 (2.000%) |
| B | $25,000 | $500 (2.0%) | $400 (1.6%) | 2.5 | 2 contracts: $400 (1.600%) | 3 contracts: $600 (2.400%) |
| C | $65,000 | $1,300 (2.0%) | $1,040 (1.6%) | 6.5 | 6 contracts: $1,200 (1.846%) | 7 contracts: $1,400 (2.154%) |
| Total | $100,000 | $2,000 | $1,600 (fees $400) | 10.0 | 9 contracts: $1,800 | 11 contracts: $2,200 |
The pool allocates money, so every investor earns 2.0% gross and 1.6% net. The MAM allocates contracts, so client B earns 1.6% or 2.4% on the same trade depending only on the rounding rule, and the block itself shrinks to 9 contracts or grows to 11. A self-copy setup faces the same whole-contract arithmetic, but the owner sets each follower's multiplier in advance, so sizing is a visible decision rather than a plugin's rounding rule.
Which of these need a licence or a power of attorney?
Arrangements in which one person decides for other people's accounts or money generally need registration or authorisation, while copying your own decisions across your own accounts advises nobody. In US futures, the National Futures Association (NFA) defines a commodity trading advisor (CTA) as an individual or organization that, "for compensation or profit, advises others, directly or indirectly, as to the value of or the advisability of trading futures contracts", options on futures, retail forex or swaps. Under 17 CFR 4.14(a)(9), a person who neither directs client accounts nor gives advice tailored to particular clients' positions or circumstances can be exempt from CTA registration, which may cover a generic newsletter but is unlikely to cover a signal service that executes automatically in subscribers' accounts.
The NFA defines a commodity pool as an enterprise combining funds contributed by a number of persons to trade futures, options on futures, retail forex or swaps, so a PAMM trading US futures fits the definition and its operator needs commodity pool operator (CPO) registration unless an exemption applies. NFA Compliance Rule 2-8 bars members from exercising discretion over a customer's futures account without written authorization, by power of attorney or another instrument, which is the authority a managed account runs on.
In the UK, the Financial Conduct Authority states: "We classify copy trading as portfolio or investment management where no manual input is clear from the account holder." In the EU, ESMA's March 2023 supervisory briefing sets out when copy trading qualifies as an investment service under MiFID II (the EU's investment-services law) and what firms owe clients on costs, suitability, inducements and copied traders' qualifications. Claims that copy trading is outright illegal in the US have no traceable legal source; US rules attach to who decides for whom and who is paid.
Which of these do prop firms allow?
At most, self-copying: prop firms that permit trade copiers limit them to your own accounts and prohibit arrangements that put another person's decision or hands on an account. Topstep's explainer (23 March 2026) draws the line: "A trade copier only mirrors your own trades across multiple accounts, so you remain in full control of your strategy and execution." My Funded Futures' help center (updated 24 August 2026) allows copy trading across all account types, while its Fair Play page says traders are not permitted to copy trade one another. Running several funded accounts is covered in can you copy trade multiple prop firm accounts.
Topstep's Prohibited Conduct page lists trades performed in concert with others, including third parties, and My Funded Futures' copying ban covers entering, exiting or cancelling positions. Typing a signal provider's trade yourself does not turn it into your own decision.
PAMM, MAM and power-of-attorney management are structurally incompatible with a personal funded account, because each puts a manager's decision on an account only its holder may trade.
A trade copier is the right tool only when the decision and the accounts are both yours. Thor, this blog's own product, is built for that case alone; alternatives are compared in the best futures trade copiers, and cross-platform setups in how to copy trade on MT5 and cTrader step by step. Anyone who wants someone else to decide needs a regulated arrangement (a manager under written authority, a registered or properly exempt pool, or an authorised copy-trading platform), not a copier pointed at another person's signals.
Go deeper
- Is Copy Trading Legal? What Regulators Actually Say
- Copying Signal Providers on Prop Firms: Why Paid Signals Get You Banned
- Can You Copy Trade Multiple Prop Firm Accounts? Rules & Compliant Setup (2026)
- Does Copy Trading Actually Work? An Honest Answer
Frequently asked questions
Is copy trading the same as a managed account?
No. In a managed account the manager places orders directly in your account under written discretionary authority, while in social copy trading the leader trades their own account and a platform scales those trades into yours, usually without the leader ever seeing your account.
Is eToro CopyTrader free?
eToro says there is no additional charge for copying another trader (as of September 2026). The copied positions are ordinary trades in your account, so spreads and transaction fees still apply, and eToro sets a $200 minimum to copy a trader and a $1 minimum per copied position.
What is a LAMM account?
LAMM (lot allocation management module) is generally described as the predecessor of PAMM, in which investor accounts received identical lot sizes regardless of their balances. PAMM replaced equal lots with allocation by each investor's share of the money.
Can a friend trade my funded account if we split the payout?
No. Topstep's Prohibited Conduct page lists trading on behalf of others, including sharing incentives as part of a business arrangement, and tells traders to avoid account-sharing, while My Funded Futures does not let a trader use the same device (tablet, phone or computer) as another trader.
Does selling trade signals in a Discord channel require CTA registration?
In US futures it can. One NFA-listed exemption covers advice provided to 15 or fewer persons during the past 12 months by an entity that does not generally hold itself out to the public as a CTA, which an openly advertised paid channel will struggle to meet, and other exemptions carry their own conditions.
Will a trade copier make a losing strategy profitable?
No. A copier multiplies whatever the master account does, losses included, so a strategy that loses on one account loses on every follower in proportion to its multiplier. Per-account sizing controls how much each account risks, not whether the trades win.
Is PAMM safer than social copy trading?
Not inherently. Social copy trading keeps your money in an account in your own name, while a PAMM places it in a pooled account traded by the manager and allocated by the broker's software, so you carry the manager's trading risk plus the pool's structure and fees. Which is riskier in practice depends mostly on the manager or leader, the broker and its regulator.
Can I copy my own trades from one prop firm to another?
Usually yes, if every account is yours and each firm permits trade copiers, since the decision and the accounts stay with one trader. Per-account sizing matters because different firms set different account sizes and drawdown limits.
Sources
- Financial Conduct Authority (2015, updated 2026), Copy trading
- eToro (2026), CopyTrader
- Apesteguia, Oechssler and Weidenholzer (2020), Copy Trading, Management Science 66(12): 5608-5622
- MetaQuotes (2018), Brokeree Solutions releases PAMM for MetaTrader 5
- National Futures Association, Commodity Trading Advisor (CTA) Registration
- Topstep (2026), Copy that! What is a trade copier?