Position Sizer

Size positions from account risk, stop distance, and conviction.

Account & Strategy

Account Size ($)

Strategy

Spread Width ($)

Premium Collected/Paid ($)

Max Daily Risk %2.0%

Max Per-Trade Risk %1.00%

Win Rate %65%

Negative expected value — no edge at this win rate and sizing. Do not trade.

Sizing Output

Contracts

$1,700

Max Loss / Trade

$800

Max Profit / Trade

$500

Daily Loss Cap

0.47:1

R:R Ratio

$-75

Expected Value

$2,500

Margin Required

Risk Rules Checklist

Per-trade loss within risk limitFAIL

EV positive at stated win rateFAIL

Margin under 50% of accountPASS

Daily cap respected on 1 lossFAIL

R:R above 0.3:1PASS

Win rate suits strategy typePASS