Size every trade around your risk, not your hopes.

Enter your account, how much you're willing to lose, and where you'd be wrong. RiskSizer tells you how big the position can be.

$
%
$
$

Stop below entry = long. Stop above entry = short.

R
LONG
—shares

Max position size at your risk limit

Risk budget
—
Actual $ at risk
—
Risk per share
—
Position value
—
% of account deployed
—
Target price
—
Potential reward
—
Risk : Reward—
RiskReward

How it's calculated

1 · Risk budget

Account × risk %. This is the most you plan to lose if the stop is hit.

2 · Risk per unit

|Entry − Stop| per share, or × 100 per option contract (premium-based).

3 · Size

Budget ÷ risk per unit, rounded down to whole shares or contracts.

4 · Target

Entry ± (R × risk per share). 2R means the reward is twice the risk.