Expectancy is the average profit (or loss) you can expect per trade from a trading system over the long run.
Simple Formula:
Expectancy = (Win Rate × Average Win) – (Loss Rate × Average Loss)
- Win Rate: % of trades that win (e.g., 60%).
- Loss Rate: % of trades that lose (e.g., 40%).
- Average Win: Average profit on winning trades.
- Average Loss: Average loss on losing trades (use positive number).