kcw

Keltner Channels Width (percentage)

kcw(source, length, mult, matype="ema", atr_length=..., atr_matype="wilder", bandstyle="atr")

Parameters

Name Type Description
source field Price field for the middle line (typically close)
length int Period for the middle line MA
mult float Multiplier for band width

Formula

KCW = ((kc_upper - kc_lower) / kc_middle) * 100

Examples

kcw_value = kcw(close, 20, 2.0);
kcw_value < 10;  # Narrow channels (low volatility, potential breakout)
kcw_value > 30;  # Wide channels (high volatility)
# Squeeze detection (compare with Bollinger Bands Width)
kc_width = kcw(close, 20, 2.0);
bb_width = bb_width(close, 20, 2.0);
kc_width < bb_width;  # Squeeze condition

Returns

float

Range

length and atr_length follow the same bounds as kc_upper/kc_lower; matype forwards to all three nested calls, atr_length/atr_matype/bandstyle forward only to kc_upper/kc_lower

Notes

Width expressed as a percentage for cross-asset comparisons; often paired with bb_width for squeeze detection

See Also

kc_upper, kc_lower, bb_width

References

TradingView: ta.kcw(source, length, mult, useTrueRange); derived from Keltner Channels

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