PortVolatility — What Is It?
A measure of how much an instrument's value fluctuates over time.
Explanation
Calculated as the standard deviation of returns, usually annualized. High volatility means large fluctuations in both directions — it doesn't only mean declines.
Volatility is the most commonly used approximation of risk, but it only measures price fluctuations. It says nothing about the risk that a company might simply cease to exist, or whether the price is reasonable.
Example
A stock with an annual volatility of 40% fluctuates roughly twice as much as a broad stock index, which typically has a volatility of 15–20%.
Related Terms
See Live Volatility
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Portevo is not an investment advisor. The data and analyses are for informational and educational purposes only and do not constitute a recommendation or an offer to buy or sell financial instruments. Quotes are from external providers and may be delayed. You make investment decisions at your own risk.
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