Ask any professional trader what matters most, and they won't say entries. They'll say position sizing.

Position sizing determines how much of your account you risk on any single trade. It's the single biggest factor in whether you survive long enough to become profitable.

The 1% Rule

Never risk more than 1-2% of your account on a single trade. If your account is $25,000 and you risk 1%, your maximum loss per trade is $250. This means:

  • If your stop loss is $2 away from entry, you can buy 125 shares
  • If your stop loss is $5 away, you can buy 50 shares
  • The stop distance determines the share count — not the other way around

Why This Matters

With 1% risk per trade, you can lose 10 trades in a row and only be down 10%. That's survivable. That's recoverable. Risk 10% per trade? Three losses and you're down 30% — now you need a 43% gain just to break even.

How MAC Terminal Helps

Enter your account size in the header, and every setup in the Scanner automatically calculates your position size, entry, stop, and targets. No math, no guessing — just execute.