Copy trading
Automatically replicating another trader's positions in your own account.
Copy trading connects your brokerage account to a strategy so that when the strategy trades, your account trades too, scaled to your capital. You keep custody of your money; the strategy supplies the decisions.
The catch most platforms underplay: copiers rarely earn exactly what the leader earns. Order timing, fill prices, and fees differ between accounts, and the gap usually widens on fast-moving days. An honest platform measures and shows that gap instead of pretending it does not exist.
Whatever platform you use, confirm three things: the leader's record is broker-verified, your money never leaves your own broker, and the strategy's risk (drawdown, leverage) is displayed as prominently as its returns.