In plain words: A statistical measure of the dispersion of returns for a given security or market index.
Volatility describes how much and how often the price of an asset moves around its average over time. High volatility means sharp swings in both directions; low volatility means steadier, smaller movements. It is a measure of variability, not of direction, so a volatile asset can rise as quickly as it falls.
Does volatility mean the same thing as risk?
Not exactly. Volatility captures the size of price swings, while risk is the chance of a permanent loss. Asset classes differ: global equities and crypto tend to swing widely, whereas cash and high-quality bonds move far less.
How can long-term investors deal with volatility?
A diversified portfolio blends asset classes so that calmer holdings cushion the sharper ones. Periodically restoring those weights, explained in long-term investors, can turn volatility into an opportunity to buy assets when prices fall rather than a reason to panic.
Key takeaways
- Volatility measures the dispersion of returns, not their direction.
- Different asset classes carry very different levels of volatility.
- Diversification and rebalancing help manage volatility over time.