ATR vs Standard Deviation: Measuring Volatility

Comparison Guide

ATR vs Standard Deviation: Measuring Volatility
Published by TradeSignal AI · Last updated March 2026 · Editorial standards

ATR (Average True Range) and Standard Deviation both measure volatility but in different ways. ATR considers gaps and true range, making it better for individual stocks. Standard Deviation measures dispersion from the mean and is the basis for Bollinger Bands.

Understanding the Differences

When choosing between these two approaches, consider your trading style, risk tolerance, and goals. Each has distinct advantages that make it better suited for specific situations.

When to Choose Each

The right choice depends on your experience level, capital, and market conditions. Many successful traders and investors use elements of both approaches to build a more robust strategy.

The Bottom Line

Rather than viewing this as an either/or decision, consider how each approach can complement the other in your overall strategy. Understanding both gives you more tools to work with.

Frequently Asked Questions

What is the main difference?

The core difference lies in their approach and best use cases. Understanding when each excels helps you make better decisions.

Last updated: March 2026

TradeSignal AI provides free trading tools, guides, and AI-powered stock signals for smarter trading decisions.

Related Tools

Use the ATR Calculator →

Part of our Technical Analysis Guide