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Keltner Channel

Keltner Channel is a volatility-based envelope set above and below an exponential moving average (EMA). The channel uses the Average True Range (ATR) to set the distance of the bands.

Lines

  • Upper Band: EMA + (ATR * multiplier)
  • Middle Band: Exponential Moving Average (EMA)
  • Lower Band: EMA - (ATR * multiplier)

Parameters

  • period (default: 20): Period for EMA and ATR
  • multiplier (default: 2): ATR multiplier for channel width

Usage Example

import { KeltnerChannel } from '../src/keltner';

const keltner = new KeltnerChannel();
const result = keltner.nextValue(high, low, close);
// result: { lower, middle, upper }

Returns

An object with the following properties:

  • lower: Lower band value
  • middle: Middle band (EMA) value
  • upper: Upper band value