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The lower Keltner band is the mid line minus a multiple of ATR. Price near or below it can signal strong downside moves.
The lower Keltner band is the mid line minus a multiple of ATR. Price near or below it can signal strong downside moves.
The calculation:
Lower Keltner = Keltner Mid - (Multiplier × ATR) Typically: Lower Keltner = 20-EMA - (2 × 10-period ATR)
What the lower band represents:
- Volatility-based boundary: Based on Average True Range
- Dynamic support: Adjusts with price level and volatility
- Smoother edges: Less reactive than Bollinger bands
How to interpret:
- Price at lower band: Strong downward momentum
- Breakdown below: Exceptional weakness; potential trend acceleration
- Walking the band: Sustained downtrends ride along lower band
- Reversal from band: May indicate short-term bounce opportunity
Trading applications:
- Trend confirmation: Price consistently near lower band confirms downtrend
- Short entries: Rejection from mid line in downtrend may offer short entry
- Cover targets: Lower band can serve as cover target for shorts
- Mean reversion: Extended move below band may set up bounce trade
Like the upper band, the lower Keltner provides a volatility-adjusted view of price extremes. Its smoother construction helps identify genuine trend moves versus noise.