Volatility is risk in numbers. Compute the standard deviation of any stock's returns and see its risk rating.
Standard deviation of daily returns.
Scales by √252 trading days.
Rates low, moderate or high volatility.
Run through a typical scenario with the sample values below — hit See an example to load them instantly.
| Input | Sample value |
|---|---|
| Closing Prices | 100,102,98,105,110,108,112,115 |
Follow the steps below to get accurate results.
Closing PricesVolatility is risk in numbers. Compute the standard deviation of any stock's returns and see its risk rating.
Stock Volatility Risk Calculator is an interactive estimate built for quick planning. Always double-check the numbers that matter before acting on them, and reach out to a professional for personalized advice.
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Simply fill in the fields and press Calculate. Volatility is risk in numbers. Compute the standard deviation of any stock's returns and see its risk rating.
Just the basics — Closing Prices, plus a few simple inputs. No account or signup is required; everything runs in your browser.
Yes — completely free, with no login, no watermarks and no limits. Bookmark it and share the URL with anyone who needs it.
The calculator uses current, standard formulas to produce an educational estimate. Real-world figures can vary based on your specific situation, so treat it as a planning aid rather than a final answer.
Absolutely. The tool is fully responsive and works smoothly on mobile, tablet and desktop browsers.
The result is an estimate for educational purposes only and is not financial, legal or tax advice. Consult a qualified professional before making important decisions.