How copy platforms actually work

Behind the friendly "copy" button sits real plumbing that shapes your results. Knowing it prevents nasty surprises.

Allocation

When you copy a trader you set an allocation — how much of your own capital follows them. The platform scales each of their trades to your allocation. If the master risks 2% of their account on a trade, a proportional 2% of your allocated capital is risked too. Allocate too much to one trader and a single bad streak hits you hard; spread too thin and fees eat the returns.

Slippage and timing

Your order is not the master’s order. There is a delay between their fill and yours, and you may be filled at a different price — this is slippage. In fast markets the gap can be large, so your real result drifts from the headline performance you were shown. The more illiquid the instrument, the worse this gets.

Fees stack up

Copy trading layers costs:

• The normal spread and commission on every replicated trade.
• A performance or copy fee to the master or platform.
• Sometimes a subscription on top.

Because the master often trades frequently, these costs compound. A strategy that looks profitable gross can be a loser net of everything you pay.

Minimums and partial fills

Small accounts hit limits: if the master’s position scales below the platform’s minimum trade size, your copy may be skipped or rounded, so you do not actually mirror them. Your curve and theirs diverge for purely mechanical reasons — before luck even enters the picture.