Free Probability Calculator

Probability Calculator

Calculate stock market probabilities with this easy-to-use tool. For deeper analysis using Monte Carlo simulation, check out McMillan's Probability Calculator Software .

Stock Price

Target Price

Expiration Date ℹ️ Select the expiration date to auto-fill calendar days remaining.

Calendar Days Remaining ℹ️

Volatility Lookup (Symbol) ℹ️

Indices begin with $ and futures begin with @ and end with the month symbol (letter).

Percent Annual Volatility ℹ️ You can either use the Volatility Lookup above (HV100 from our free weekly volatility data), or enter a custom volatility manually (e.g., 25 for 25%). Need more data? Get daily volatility data as part of The Strategy Zone.

Results

Probability of stock being above Target Price %

Probability of stock being below Target Price %

Past performance is not necessarily indicative of future results.
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Free Probability Calculator

Probability Calculator

Results

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