Average True Range

Discover the limitations of the Average True Range (ATR) indicator. Learn why ATR can be misleading for stop-loss and take-profit in algorithmic trading.

Published · Updated · Methodology: Technical Indicators

Part of: ATR & Volatility

  • Methodology: Technical Indicators
  • Content type: educational
  • Timeframes: Not specified, but the video mentions issues with ATR across different timeframes.
  • Markets: Not specified, but the video mentions issues with ATR across different assets.

Indicators used

  • ATR

Source video

Decoded from: The Problem With Average True Range No One Talks About by Ali Casey | StatOasis — watch the original

Key timestamps:

  • 0:00 - Introduction to ATR problems
  • 1:00 - ATR is a lagging indicator
  • 2:30 - ATR values are not comparable across assets
  • 4:00 - ATR values are not comparable across timeframes
  • 6:00 - Implications for stop loss and take profit
  • 8:00 - ATR is not a predictive indicator

Strategy overview

Average True Range measures how much an instrument typically moves over a given period, and it has become the default building block for sizing stops, targets and position risk. This entry decodes a video that takes the opposite stance to most ATR tutorials: instead of showing what to do with the indicator, it catalogues where the indicator quietly misleads the people using it.

The source is "The Problem With Average True Range No One Talks About" from Ali Casey | StatOasis, a channel that approaches trading tools from a statistical rather than a chart-pattern angle. The video's structure is a walk through four objections — that ATR is backward-looking by construction, that its raw values are not comparable between one asset and another, that they are equally incomparable across timeframes, and that it carries no predictive claim about the volatility that is about to happen. The last third turns to the practical consequence the rest of the video has been building toward: what those limits mean for anyone anchoring stop-loss and take-profit distances to an ATR multiple.

This is framed as a critique rather than a setup, so there is no entry-and-exit ruleset to extract from it. Read it as the caveat sheet that belongs next to any ATR-based system you already run — the questions to ask before trusting a volatility number, particularly when you are comparing readings taken from different symbols or different chart intervals.

Topics

average true range · atr indicator · technical indicators · trading strategy · pine script · tradingview strategy · indicator review · volatility indicator · algorithmic trading · backtesting · stop loss · take profit · trading indicators

Frequently asked questions

What is Average True Range (ATR)?

ATR is a volatility measure that averages the true range — the greatest of the current high-low, high-to-prior-close and low-to-prior-close distances — over a lookback period. It expresses typical movement in the instrument's own price units.

Why can't ATR values be compared across different assets?

Because ATR is reported in the price units of the instrument it is measured on. The video argues that an ATR reading on one symbol says nothing about volatility on another unless it is normalised, since the absolute number is tied to that asset's price level.

Is ATR a predictive indicator?

The video's closing point is that it is not: ATR summarises volatility that has already occurred over the lookback window, which makes it lagging by construction and no guarantee of the range the market is about to produce.

Does ATR still work for setting stop losses?

The video does not reject ATR-based stops outright — it examines what its limitations imply for them, particularly the risk of reading an ATR multiple as a fixed measure of risk when the underlying volatility regime shifts or when the same rule is ported between timeframes.

About this strategy page

This trading strategy was decoded by Strategy Decoder's AI from a public YouTube trading video and turned into a structured, reviewable specification. In the interactive app this page shows the full entry and exit logic, risk management settings, the indicators involved with their parameters, AlgoWizard-compatible logic and a Pine Script export ready for TradingView backtesting — plus an automated backtest verdict when one has been computed for this strategy.

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