What is Bollinger Bands?
A volatility channel with a 20-day moving average in the middle and bands 2 standard deviations above and below.
Animation · Bollinger Bands
Learn “Bollinger Bands” in an animated lesson
- Trend IndicatorsBollinger Bands
The middle band is the 20-day moving average and the outer bands sit two standard deviations away: the bands "breathe" with volatility.
- Volume & Volatility IndicatorsDonchian and Keltner Channels
One uses the highest high and lowest low, the other uses ATR: two channels, two kinds of breakout logic.
Related terms
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