Stock Volatility Thirty Days
Calculates the historical volatility of a stock over the past 30 trading days.
Syntax
=StockVolatilityThirtyDays(symbol)Returns
number
30-day volatility as decimal
Examples
=StockVolatilityThirtyDays("AAPL")When to Use
- Monthly risk assessment
- Options pricing (common benchmark)
- Portfolio risk analysis
When NOT to Use
| Scenario | Use Instead |
|---|---|
| Weekly view | StockVolatilitySevenDays() |
| Quarterly view | StockVolatilityThreeMonths() |
Common Issues & FAQ
How does 30-day compare to implied volatility?
30-day historical is often compared to IV for trading signals.
Excel Templates Using Stock Volatility Thirty Days
These ready-made MarketXLS templates call StockVolatilityThirtyDays() in their worksheet formulas. Open one to see the function working inside a complete model.
Related Formulas
More MarketXLS MarketXLS Analytics formulas you can use in the same worksheet:
- Stock Volatility Three Years
- Stock Volatility Two Years
- Stockchart
- Theta
- Ticker Name
- Time Series Forecast
- Trade Date
- Twenty Day Volatility
See StockVolatilityThirtyDays used in a complete workbook: Stock Volatility Calculator: How to Measure & Calculate Volatility in Excel
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