With investments, volatility refers to changes in an asset's or market's price — especially as measured against its usual behavior or a benchmark. Volatility is often expressed as a percentage: If a ...

Volatility refers to the degree of variation in the price or value of an asset, security, or market over a specific period, typically measured by the standard deviation or variance of returns. It ...

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Volatility is important for position sizing, determining risk, calculating stops and profit-targets, and rebalancing portfolios. Average true range is a useful measure for position sizing in futures ...