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Look up volatility in Wiktionary, the free dictionary.

Volatility is the measure of the state of instability.

  • Volatility (finance) frequently refers to the standard deviation of the change in value of a financial instrument with a specific time horizon. It is often used to quantify the risk of the instrument over that time period. Volatility is typically expressed in annualized terms, and it may either be an absolute number ($5) or a fraction of the initial value (5%).
  • Volatility (chemistry) is a measure of the tendency of a liquid (or solid) to evaporate into a gaseous form. Higher volatility indicates a higher tendency to evaporate and a lower volatility means that it has a lower tendency to evaporate.

See also

cs:Volatilita de:Volatilität no:Volatilitet fi:Volatiliteetti sv:Volatilitet