Volatilityis the rate of fluctuations in the trading price of securities for a specific return. It is the shift of asset prices between a higher value and a lower value over a specific trading period. When changes are big, and they occur frequently, the market is more volatile.Volatilityacts as a statistical measure for analysts, investors, and traders, allowing them to understand how ... Jul 19, 2024 ·Learn whatvolatilitymeans in investing, how it's measured, and why it matters for your portfolio. VOLATILITYdefinition: 1. the quality or state of being likely to change suddenly, especially by becoming worse: 2. the…. Learn more. Volatility isthe degree of variation of a trading price series over time, usually measured by the standard deviation of logarithmic returns.Learn about volatility terminology, mathematical definition, origin, and effects on investors and options pricing.