Volatility
Also called: price volatility · vol
Definition
Volatility is a measure of how much and how quickly an asset's price moves up and down over a given period, and higher volatility means larger, faster swings.
How volatility works
Crypto is known for high volatility. Daily moves of 3 to 5 percent are common for Bitcoin, and small altcoins can move 20 percent or more in a day. Stablecoins are designed to have very low volatility because they track a currency such as the US dollar.
Traders measure volatility in different ways: the standard deviation of returns, the average true range (ATR) on a chart, or implied volatility from options prices. You do not need the formulas to use the idea. Look at how big a typical daily candle is compared with the price.
Volatility matters most when you use leverage. A 10 percent move against a 10x position wipes out roughly all of your margin, and liquidation can happen before that because of maintenance margin and fees. Matching your position size and stop-loss distance to a coin's normal volatility is one of the simplest ways to avoid being stopped out by ordinary noise.
Example
Suppose Coin A usually moves about 2 percent a day and Coin B about 8 percent. You want to risk 50 USDT on a trade. If you place your stop just outside a normal day's range, about 3 percent away for Coin A and 12 percent for Coin B, you could open a position of about 1,667 USDT in Coin A but only about 417 USDT in Coin B for the same 50 USDT risk.
Common mistakes
- Using the same position size and leverage for a calm coin and a wildly volatile one.
- Placing stop-losses inside a coin's normal daily range and getting stopped out by noise.
- Assuming low volatility will last; quiet periods are often followed by sharp moves.
Learn and practise
FAQ
Why is crypto so volatile?
Crypto markets trade 24/7, many coins have low liquidity, leverage is widely available and news spreads fast, so prices react quickly and sharply.
Is high volatility good or bad?
It cuts both ways. It creates bigger opportunities for traders but also bigger losses, especially with leverage.
Which crypto has the lowest volatility?
Stablecoins such as USDT and USDC aim to stay close to 1 US dollar. Among volatile assets, large coins like BTC usually swing less than small altcoins.