Average True Range (ATR) - A Comprehensive Guide

12 février 20225 min read
Average True Range (ATR) is a popular trading indicator that helps traders assess the volatility of an asset. Whether you're a novice or experienced trader, understanding how to interpret ATR can help you make better trading decisions. In this guide, we'll explain what ATR is, how it's calculated, and how you can use it to enhance your trading strategies.

What is Average True Range (ATR)?

Average True Range (ATR) is a technical analysis indicator that measures the volatility of an asset over a period of time. Developed by J. Welles Wilder Jr. in the 1970s, ATR is used by traders to understand how much an asset's price typically moves in a given timeframe. Unlike other indicators that only consider price changes, ATR takes into account the asset's price range, which can provide a more accurate representation of volatility.

The ATR value is represented as a percentage or a point value, depending on the trader's preference. Essentially, the higher the ATR value, the more volatile the asset is deemed to be. Conversely, a lower ATR value indicates less volatility. By understanding the asset's volatility, traders can set stop-loss orders and create more effective entry and exit points for their trades.

How is ATR Calculated?

Before we dive into the calculation behind ATR, it's important to note that the indicator is typically based on 14 periods. However, traders can adjust the period to suit their trading style and the asset's volatility.

To calculate ATR, you must first calculate the True Range of an asset. True Range is the greatest of the following values:

  1. Current high minus the current low
  2. Absolute value of the current high minus the previous close
  3. Absolute value of the current low minus the previous close

With the True Range calculated for the past 14 periods, the ATR value can be calculated. The process is typically repeated for each period to give traders an up-to-date ATR value.

While the calculation behind ATR may seem complicated, most trading platforms and technical analysis software have built-in ATR calculators that make it easy for traders to access the indicator.

How Can Traders Use ATR?

There are several ways that traders can use ATR to enhance their trading strategies. Below are some common uses of the indicator:

  1. Setting stop-loss orders: Traders can use ATR to determine the optimal stop-loss level for their trades. By setting a stop-loss order at a level below the ATR value, traders can limit their losses in case the trade goes against them.
  2. Confirming trend strength: When you combine ATR with other technical analysis indicators like Moving Averages, you can better understand the strength of the trend. A higher ATR indicates a strong trend, while a lower ATR may indicate a weaker trend.
  3. Finding entry and exit points: Traders can use ATR to identify potential entry and exit points for their trades. By analyzing the asset's volatility, traders can set profit targets and manage their trades more effectively.

By combining ATR with other technical analysis tools, traders can create more robust trading strategies that take into account the asset's volatility and underlying trends.

Limitations of ATR

While ATR is a useful indicator, traders should be aware of its limitations. Below are some common limitations of ATR and technical analysis in general:

  1. Historical data may not predict future performance: Technical analysis indicators like ATR are based on historical price data. While this data can provide valuable insights into the asset's volatility, it may not always predict future performance accurately.
  2. No indicator is foolproof: Like all technical analysis tools, ATR is not a guaranteed way to make profitable trades. Traders must combine ATR with other indicators and analysis techniques to create effective trading strategies.
  3. ATR can produce false signals: In some cases, ATR may produce false signals that can result in losses for traders. It's important to use the indicator in conjunction with other analysis tools to minimize the risk of false signals.

By understanding the limitations of ATR and technical analysis, traders can make better-informed trading decisions and minimize their risk.

Conclusion

Average True Range (ATR) is a powerful trading indicator that can help traders assess an asset's volatility and create better trading strategies. By combining ATR with other technical analysis tools and trading experience, traders can make more informed trading decisions and minimize their risk of losses. As with any technical analysis tool, it's important to be aware of the limitations of ATR and use it in conjunction with other analysis techniques to create effective trading strategies.

We hope this guide has helped you understand ATR and how you can use it to enhance your trading strategies. Happy trading!