Volatility
How much a price moves from one month to the next, up or down. More volatility means bigger jumps.
Volatility measures how abrupt a price's moves are. A low-volatility asset moves in small steps; a highly volatile one jumps up and down.
Over the last five years, bitcoin's annual volatility was 53%, ethereum's 72% and the S&P 500's 16%. Bitcoin moved about 3 times as much as the S&P 500.
Volatility isn't the same as losing: it's how wide the road is. But a wide road is harder to stay on, and anyone who panics and sells on the way down does lose.
It's the standard deviation of log returns, scaled to a year: the monthly figure times √12. On this page it's calculated with the closes of the last 60 months.
If returns were bell-shaped, two years out of three would land within one volatility above or below the average. Real markets have more extreme months than a bell would suggest.
Volatility also drags on growth: the compound return is roughly the average minus half the variance. That's why a very volatile asset needs a high average just to break even.
Bitcoin · 53%
S&P 500 · 16%
Each bar is one month. Same scale in both charts.
Try it yourself
These two paths are real and lasted two years. Both start at $100 and end near $140. Imagine your money is in one of them: which one would you rather live through?
Path A
Highest: $306 · lowest: $50
Path B
Highest: $140 · lowest: $100
You chose the path that moves the most. The good part: at times it was worth $306. The hard part: at other times it was worth $50: it fell as much as 84%. Anyone who sold there out of fear ended up with $50, not $140.
You chose the calm path. The good part: the worst it did was drop 8%, much easier to live with. The hard part: calm doesn't mean risk-free: the S&P 500 has also fallen 50% from October 2007, and it took 4 years and 4 months to come back.
A was bitcoin, between October 2017 and October 2019. B was the S&P 500, the US stock market, between August 2024 and August 2026. They ended almost the same, but the path was very different: that's volatility. It doesn't necessarily change where you end up; it changes how hard it is to hold on until the end.
Where you see it in Compass
- Simulator · ExploreIn Explore, each asset's annual volatility.
- Simulator · Look aheadIn Look ahead, the width of the range of outcomes comes from it.
Related terms
Frequently asked questions
Does more volatility mean more profit?
Not necessarily. Volatile assets can rise a lot, but they can also fall a lot, and volatility on its own drags down the compound return. It only says how big the jumps are, not which way they go.
How volatile is bitcoin?
Over the last five years, 53% a year, versus 16% for the S&P 500. Ethereum had 72%.
Calculated and reviewed by Compass. Sources, checks and method
Figures with data as of October 26, 2026. Educational content. Not financial advice. Past results don't guarantee future results.