What it means
Keltner Channel is a volatility envelope similar to Bollinger Bands but uses ATR (Average True Range) instead of standard deviations for the channel width. Formula: upper = EMA(20) + 2 × ATR(10); lower = EMA(20) - 2 × ATR(10). Smoother than Bollinger Bands because ATR is less reactive than standard deviation. Often used in combination with Bollinger Bands for 'squeeze' detection — when Bollinger Bands fit inside Keltner Channels, volatility is exceptionally low.
Why it matters
Keltner provides a stabler version of the Bollinger framework. Less sensitive to single-period vol spikes. The Bollinger-inside-Keltner squeeze is one of the cleanest breakout-setup signals available — combines both volatility frameworks for confluence.
How to use it
Use Keltner alongside Bollinger Bands. When Bollinger fits inside Keltner = squeeze setup. When Bollinger expands outside Keltner = breakout in progress. Standalone Keltner: ranging-market support/resistance reads.
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