Risk · Advanced

Risk of Ruin Estimator

A simplified educational model showing how win probability, payoff ratio and risk per trade can affect estimated risk of severe loss.

ILLUSTRATIVE RESULTS
Estimated edge per $1 risked$0.25
Simplified risk-of-ruin estimate0%
Approximate risk units in account100

What this result meansExplore how edge and account risk influence survival. It translates only the assumptions entered above and cannot determine whether investments are substantially identical or provide tax advice.

How to use this calculator

A simplified educational model showing how win probability, payoff ratio and risk per trade can affect estimated risk of severe loss. Change one assumption at a time, compare the result and consider what the formula leaves out.

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Formula and assumptions

This simplified estimate assumes independent, repeatable trades and stable inputs—conditions real markets rarely satisfy. Results are simplified illustrations and may exclude taxes, changing rates, liquidity, spreads, market impact, assignment, broker rules or other real-world factors.

Common questions

Does this calculator use live market data?

No. Every value comes from the assumptions you enter. A ticker symbol, when shown, is only a label.

Can I make a trade based on this result?

The result is an educational illustration, not a recommendation or a complete analysis. Verify current facts, account rules, costs and risks independently.

Why might the actual result be different?

Real outcomes can be affected by execution price, spread, slippage, fees, taxes, liquidity, volatility, financing costs, corporate actions and changing market conditions.

Educational illustration only. This calculator does not use live market data and does not provide investment, trading, tax or legal advice. Verify formulas, rules, fees and product details with current primary sources and regulated providers before acting.