A trader's return is a record of what happened to their account. Copy trading turns that record into a proposal: give future decisions by the same person access to some of your capital. The gap between those two statements deserves careful attention.
What gets copied
Some services send trade ideas for manual approval. Others automatically reproduce a leader's orders or maintain proportional exposure. Those designs produce different timing and control. The FCA's description of copy trading makes the distinction explicit; its regulatory classification depends on the arrangement.
Find out how deposits, withdrawals, existing positions, and insufficient margin are handled. Joining a leader already holding a profitable position may mean opening at today's price, not their original entry. Copying a percentage of their order also need not preserve their portfolio weights if your available balances differ.
A leaderboard is a selection process
Imagine 1,024 traders each make ten independent, even-odds bets. On average, one will win all ten by chance: 1,024 × (1/2)10 = 1. Looking only at that winner creates a very different impression from seeing the whole population.
Real trading results are more complicated, but the selection problem remains. A spectacular recent record is less informative when it was chosen from thousands of attempts. Ask how long the history is, whether failed accounts disappear, and whether the displayed return separates deposits and withdrawals from trading results while accounting for fees, funding, and open losses.
A high win rate is particularly easy to manufacture by taking small profits and leaving losing positions open. What matters is the full distribution: typical gain, typical loss, worst drawdown, exposure during the drawdown, and how the strategy eventually exits a bad position.
The strategy behind the return
Try to explain where the return comes from. Is the leader taking broad market exposure, trading specific events, collecting funding, or making many small bets on short-lived price moves? Compare the result with a simple exposure to the same market. A rising balance during a rising market does not by itself demonstrate skill.
Then inspect what happens after losses. If size repeatedly doubles, the smooth early record may conceal a strategy that depends on avoiding a sufficiently long losing sequence. If several copied traders hold the same assets in the same direction, adding leaders may add little diversification.
The follower trades different prices
Suppose a leader buys at $100 and sells at $101, earning 1% before costs. A follower enters at $100.30 and exits at $100.80. The follower earns about 0.50% before fees. A small delay has absorbed half the move.
This matters most when trades are short, markets are thin, or many followers arrive together. A strategy that works on a small account can become harder to reproduce as more capital follows it. Evaluate actual follower fills where available, rather than assuming the leader's record is a return you can purchase.
How the leader gets paid
A leader paid for trading activity faces different incentives from one paid on net profits. Follower growth can also reward an eye-catching risk profile. ESMA's supervisory briefing on copy trading discusses remuneration arrangements and their conflicts. The point is to understand the incentive, not to assume every compensated leader behaves badly.
The allocation at risk
If $1,000 of a $5,000 account is assigned to a strategy and that allocation loses 20%, the whole-account loss is 4%, assuming exposure is genuinely contained within it. A copy interface's allocation label alone does not establish that containment; check cross-margin and any authority to use additional funds.
Record what would end the allocation: a change in strategy, unacceptable drawdown, execution consistently worse than expected, or loss of access to reliable reporting. Also establish how to stop copying and close positions. The record belongs to the leader; the allocation, follower execution, and decision to continue belong to your account.