What is Volatility?

Volatility is a measure of how much the price of an investment moves up and down over time. A highly volatile investment can swing dramatically in value within days or even hours. A low-volatility investment tends to move more slowly and steadily.

What causes volatility?

Many things. Company news, earnings reports, economic data, interest rate decisions, geopolitical events, and even shifts in investor sentiment can all cause prices to move sharply. Markets are made up of millions of people making decisions based on incomplete information, which means prices are constantly adjusting.

Is volatility the same as risk?

They are related but not identical. Volatility measures price movement. Risk is about the possibility of permanent loss. A stock might be highly volatile but ultimately recover and grow. A stock might be relatively stable and then collapse entirely. High volatility can feel risky, especially in the short term, but long-term investors often care more about the underlying quality of what they own than its day-to-day price swings.

How do different assets compare?

Individual stocks tend to be more volatile than funds. Funds that hold many stocks tend to be less volatile than funds that hold few. Bonds are generally less volatile than stocks. Cash is the least volatile of all, though it comes with its own risk, inflation quietly eroding its purchasing power.

How should you think about volatility?

As a long-term investor, volatility is largely noise. Prices will move. Some days will feel alarming. What matters is whether the underlying businesses you own are sound and whether you can stay calm and stay invested when things get uncomfortable. The investors who handle volatility best are usually those who understood it before it arrived.