QuanTAlib/lib/channels/_index.md

Channels

"In trending markets, ride the channel. In ranging markets, fade the edges." Unknown

Channels define dynamic support and resistance. Upper band shows where price tends to find resistance; lower band shows support. Width measures volatility; price position within channel measures momentum and mean-reversion potential.

Indicators

Indicator	Full Name	Description
ABERR	Aberration Bands	Absolute deviation-based volatility bands. More robust than standard deviation.
ACCBANDS	Acceleration Bands	Volatility-based adaptive channel by Price Headley. Width adapts to momentum.
APCHANNEL	Adaptive Price Channel	Channel based on adaptive moving average with volatility bands.
APZ	Adaptive Price Zone	Double-smoothed EMA volatility channel by Lee Leibfarth. Adapts to recent volatility.
ATRBANDS	ATR Bands	ATR-based volatility bands around moving average.
BBANDS	Bollinger Bands	Standard deviation bands around SMA. Classic volatility channel.
DCHANNEL	Donchian Channels	Highest high and lowest low over N periods. Turtle trading foundation.
DECAYCHANNEL	Decay Min-Max Channel	Exponentially decaying min-max channel. Half-life decay toward midpoint.
FCB	Fractal Chaos Bands	Tracks fractal highs and lows. Identifies chaos-based support/resistance.
JBANDS	Jurik Adaptive Envelope Bands	JMA's internal adaptive envelopes. Snap to extremes, decay toward price.
KCHANNEL	Keltner Channel	EMA with ATR bands. Smoother than Bollinger.
MAENV	Moving Average Envelope	Fixed percentage bands around moving average. Simple but effective.
MMCHANNEL	Min-Max Channel	Rolling highest high / lowest low using O(1) monotonic deques.
PCHANNEL	Price Channel	Highest high and lowest low. Identical to Donchian Channels.
REGCHANNEL	Linear Regression Channel	Linear regression line with standard deviation bands.
SDCHANNEL	Standard Deviation Channel	Moving average with standard deviation bands.
STARCHANNEL	Stoller Average Range Channel	SMA with ATR bands. Similar to Keltner but uses SMA instead of EMA.
STBANDS	Super Trend Bands	ATR-based trend-following bands. Flips direction on breakout.
TTM_LRC	TTM Linear Regression Channel	Linear regression with ±1σ/±2σ bands. John Carter.
UBANDS	Ehlers Ultimate Bands	USF-based volatility channel with RMS bands. Zero-lag smoothing by Ehlers.
UCHANNEL	Ehlers Ultimate Channel	USF-based volatility channel with Smoothed True Range bands. Zero-lag by Ehlers.
VWAPBANDS	VWAP Bands	Volume-weighted average price with dual ±1σ and ±2σ standard deviation bands.
VWAPSD	VWAP Standard Deviation Bands	Standard deviation bands around VWAP.