Copy trading fees, explained with real math

Fee structures decide whether a platform's incentives point the same direction as yours. The model to look for: no charge for assets sitting in your account, and traders paid only from profits they create. Here's how each component works, and the math on a real example.

A performance fee is a percentage of the profit a trader generates for you — on Asport Traders, between 10% and 30%, set by each trader. The crucial protection is the high-water mark: fees are only charged on profits above your allocation's previous peak.

Worked example: you copy with $2,000 at a 20% performance fee. Month one, the copy grows to $2,300 — you pay 20% of the $300 gain ($60). Your high-water mark is now $2,300. Month two, it falls to $2,100 — you pay nothing. Month three it recovers to $2,250 — still below the $2,300 mark, still nothing. Only when your value exceeds $2,300 does the meter start again. The trader cannot earn twice on the same gain, and earns zero for digging you out of a hole they created.

Every trade executes at a price slightly worse than the mid-market price — the spread. It's how execution is financed on commission-free platforms. Spreads matter more the more actively your copied trader trades: a scalper making ten trades a day incurs spread costs that a monthly rebalancer doesn't. Asport Traders shows each instrument's spread before you copy; factor it in when comparing a high-frequency and a low-frequency strategist with similar returns.

Some fee structures are red flags on any platform: