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Volatility

The degree to which an asset's price fluctuates over time; higher volatility means larger, less predictable swings.

Volatility measures how much and how quickly an investment's price moves up and down. High-volatility assets like individual stocks or crypto can deliver big gains but also sharp losses, while low-volatility assets like government bonds move more gently. Volatility is not the same as the risk of permanent loss: a diversified portfolio can be volatile yet very likely to grow over decades. Understanding your tolerance for volatility helps you choose an asset allocation you can stick with during downturns. Regular investing through dollar-cost averaging reduces the impact of short-term swings.

Example

A stock that ranges between $80 and $120 in a year is far more volatile than a bond fund that stays between $99 and $101.

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