Bollinger Bands vs Volatility

Bollinger Bands are a volatility indicator consisting of a middle moving average and two outer bands plotted at a set number of standard deviations above and below it, expanding and contracting with market volatility.

Volatility measures the degree to which an asset's price fluctuates over a given period, with high volatility indicating large, rapid price swings and low volatility indicating relatively stable, gradual price movement.