👉 You buy . If you hit your stop loss, you lose ~$198 (within your 1% limit). Step 3: Adjusting for Different Market Conditions The 1% rule isn't rigid. Adjust based on volatility :
The pros ask: "How much should I buy?"
Like this guide? Save it. Share it. And next time someone asks "What's the best indicator?"—send them this instead. The Definitive Guide To Position Sizing Free
Example: 60% win rate, 2:1 reward → f = (0.6×2 – 0.4)/2 = 40%.* 👉 You buy
No signup. No paywall. Just the math that keeps you in the game. Adjust based on volatility : The pros ask:
You can have a winning strategy (60%+ win rate) and still go broke if you get the position size wrong. Conversely, you can have a coin-flip strategy and be wildly profitable with correct position sizing.
Kelly often gives aggressive results. Most pros use Half-Kelly (20% in this example) or less. Final Takeaway (Save This) "Position sizing is the only part of trading you can control 100%." — Unknown trader You cannot control market direction. You cannot control gaps. But you can control exactly how much you lose when you are wrong.