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What’s The ABCD Harmonic Pattern?

Paul Bratby Posted by Paul Bratby in Trading Knowledge 2 min read

abcd harmonic pattern

Traders require a number of analytical tools in order to try to predict the price direction of assets they are trading. One popular method of doing this is the ABCD harmonic pattern. Below, we’ll explore what the harmonic pattern ABCD is and how to use it when trading.

What is ABCD Harmonic Pattern?

This is a chart used by traders during technical analysis. Traders look to it to identify potential trading opportunities. Two opposing price swings are used to create a harmonic ABCD pattern by dividing them into four parts – A, B, C and D. A combination of Fibonacci ratios determines each of these four parts.

How to trade the ABCD harmonic pattern?

Upon identifying a harmonic ABCD pattern, traders have to decide to hold long or hold short with their trades. Traders will take a long position if the ABCD pattern indicates an uptrend. However, they’ll hold short if the pattern points to a downtrend.

Additionally, a good trader will observe stop-loss levels. Then, they’ll make profit targets in order to maximize their profits and minimize their risk.

How to Identify an ABCD Harmonic Pattern?

To identify an ABCD pattern, start at Point A, which marks the start of the trend. It’s the lowest point in the uptrend or the highest in a downtrend, While point D determines the end of the pattern and is a Fibonacci extension of B Point.

In between, there’s point B which is the end of retracement from point A and point C which is the start of a new trend. There’s the opportunity for potential trades at point D when the new trend’s confirmed.

Our Auto Harmonic Pattern recognition software is designed to take the heavy lifting out of a traders Harmonic trading strategy. The Software automatically Identifies and Projects ABCD Harmonic Pattern Completion Zones for the 6 most trade-able Harmonic Patterns.  If the Pattern Completes in the projected zone, then there is a high probability of the resulting trade being successful. Available for TradingView, NinjaTrader, MT4, TradeStation and ThinkorSwim trading platforms.

bullish crab harmonic pattern

Example of an ABCD Harmonic Pattern

We’ll start with a stock that’s trading at $100 per share. This is how a trader will use the ABCD harmonic pattern on a price chart:

  • Point A: There’s the first uptrend on the stock’s price. It reaches a high of $110 per share.
  • Point B: Then, the stock’s price falls to $105 per share.
  • Point C: However, there’s a resumption in the stock’s price uptrend and reaches a high of $115 per share.
  • Point D: Then, the stock’s price goes back down again and falls to $110 per share.

Through the above, the trader would’ve identified an ABCD harmonic pattern.


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Posted by Paul Bratby - Trading Expert, Educator, and Software Innovator

Paul Bratby is the founder of XBrat Software Solutions and a recognised authority in technical trading education. His career began as an engineering manager in the British Army, where he developed the discipline and analytical skills that later shaped his approach to trading. Over the last 20 years, Paul has created a proven framework for simplifying complex financial strategies into user-friendly trading systems. His software and training have helped thousands of traders around the world achieve greater consistency and confidence. Paul divides his time between Dubai and Spain, committed to empowering traders with tools based on real-world experience, disciplined rules, and transparent education.

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