ATR Indicator Demo

The Average True Range (ATR), introduced by J. Welles Wilder Jr. in 1978, is a volatility indicator that measures the degree of price movement. Unlike standard deviation-based measures, ATR captures gap movements through its True Range formulation.

In this interactive demo, you can:

  1. Adjust the ATR calculation period NN using the slider.
  2. Observe how the ATR curve (blue area below) responds to changes in NN.
  3. Examine the ATR-based channel (dashed lines on the price chart) and its dependence on NN.

ATR 动态演示

Interactive Demo

💡拖动滑块观察：周期越大，ATR曲线越平滑，对价格波动的反应越迟钝（滞后性）。

Key Observations

  • Short period (N=5): The ATR curve is highly sensitive, exhibiting large fluctuations. The resulting channel hugs the price closely, which may generate frequent false breakout signals.
  • Long period (N=50): The ATR curve is smooth and sluggish to respond. The channel widens considerably; while this filters out noise, it introduces significant lag in signal generation.