At least 50–100 trades, preferably more. Most traders judge a strategy after a handful of losses, which tells them nothing about its true edge. A strategy should be evaluated over a large enough sample size to let variance play out. The goal isn't to judge individual trades—it's to judge the process.
Exactly. Most traders misjudge a strategy in the first few trades, but real edge only shows when variance plays out over a larger sample size. The goal is never to judge single outcomes it’s to evaluate consistency over time.
