What if you had copied @AmeliaHarper?

$1,000 bankroll, $25 per copy, ignoring their buys under $50, 50 bps per fill, last 30 days. Exits are their sell, your stop, or your target — whichever lands first. Slippage is applied adversely on every fill; set it to 0 to see the optimistic bound.

Prices are observed fills and quotes, not execution. Slippage is a flat assumption per fill, and open positions are valued at the latest observed price. Back to @AmeliaHarper