Enter your account size, how much you are willing to lose on the trade, your entry price, and your stop. The calculator returns the exact number of shares that keeps your dollar risk fixed — the single most important habit for surviving catalyst trades.
Risk · Free Calculator
Position Sizer & Risk Calculator
Turn your account size, risk tolerance, entry, and stop into the exact share count that caps your loss.
Shares to buy —
Dollars at risk —
Position value —
Position as % of account —
Risk per share —
Heads up: Educational planning tool. Not investment advice.
Frequently asked questions
How much should I risk per trade?
Many disciplined traders risk 0.5%–2% of their account on any single position, so no one catalyst can do serious damage. The point is that position size follows your stop, not your conviction.
Run the numbers — then never miss what moves them.
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