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How to identify harmonic chart patterns and trade them

Author: Ignacio Campo
Ignacio Campo
All publications of the author

We have seen before how one can use the Fibonacci retracement tool in their trading, but that was just as a tool rather than an actual trading strategy (Using the Fibonacci retracement). The same principles of the Fibonacci retracement can be pushed further to actually generate a valid trading strategy, and this is through the use of harmonics.

Since the Fibonacci numbers and the golden ratios occur in nature, they have been used by gamblers to predict how dice will fall and where the ball in roulette will land. The principle behind it is that nothing occurs by pure chance, and that there is a way to predict the future – to some extent. With harmonics, this same principle is being applied, this time to determine how and when market forces affect market prices. To begin, let’s look at how harmonics can be identified in chart patterns.

How to spot harmonic chart patterns

There are various forms of harmonic patterns used by traders, but these are the four main ones:

The Gartley

The Gartley is the most basic and most often used harmonic chart pattern. (What is Gartley and how to trade with it)

It is identified by an M-shaped pattern on the Forex charts online. The M-shaped pattern is that of a bullish Gartley harmonic, but it can also identify a bearish market with a W-shaped pattern. Ideally, you should be looking for something like this:

From the image above, you can see the M and W shapes formed by the Gartley harmonic and the trend that follows thereafter. There are 4 major drives that form the Gartley, starting from X to A, B, C and D. The trend between X and A represents the preceding dominant trend, either bullish or bearish. This is followed by a slight reversal with the formation of trend AB, which subsequently turns to resume the dominant trend at BC before being reversed once again at CD. The final trend is the goal of this strategy, and traders can get in on this.

You will also notice that each of the trends is market by Fibonacci numbers, and that’s because the Gartley, just like all other harmonic patterns, is guided by the Fibonacci numbers. The general rules for an accurate Gartley pattern requires that the individual trends fulfil these conditions:

  • the AB trend be the 61.8% retracement of the preceding XA
  • BC should either end at the 38.2% or 88.6% Fibonacci retracement of AB
  • CD can either be the 127.2% or 161.8% Fibonacci retracement of AB. The former if BC reached the 38.2% and the latter if BC reached as far as the 88.6% retracement level
  • CD should also be a 78.6% retracement of XA

To show all these values on an actual chart, here are examples detailing each of the stages:

Move AB reached precisely at the 61.8% retracement of move XA while CD is around the 78.6% retracement.

Move BC is precisely at the 61.8% retracement of AB

Finally, CD reaches the 127.2% retracement because move BC was only at the 61.8% retracement.

When you see this pattern, it shows you that the preceding trend will continue because there market sentiment is still the same. In the case of a bearish market like the one in the images above, the bulls got into the markets at point A, trying to push prices higher. After a bit of correction between B and C, the bulls again pushed the markets higher to point D. However, there weren’t enough bulls in the market to keep the pressure going, which is why the initial downtrend between X and A resumed. (How to earn on corrective waves)

Another harmonic chart pattern that works in the same way is the bat pattern.

The bat

This one looks a lot like the Gartley harmonic pattern, but it differs in the conditions required to create the harmonic. For the bat harmonic, the following conditions must be met:

  • after move XA, the trend AB should get either to the 38.2% or 50% retracement
  • trend BC can be either 38.2% or 88.6% of a retracement for trend AB
  • trend CD can be either 161.8% or 261.8% the retracement of BC. The former occurs when BC was at the 38.2% retracement and the latter, if BC reached the 88.6 retracement of AB
  • the final trend CD should always be the 88.6% retracement of the initial trend XA

The bat pattern will thus look like this:

On an actual chart, this would be the general look:

The butterfly

Unlike the bat and Gartley harmonics, the butterfly works when the initial trend reverses for a while. Nevertheless, the overall pattern remains similar to all other harmonic chart patterns, with the exception of the Fibonacci retracement levels.

For the butterfly patter, these rules must be fulfilled:

  • after move XA is complete, trend AB is a reversal up to the 78.6% retracement level
  • move BC then reverses AB up to either the 38.2% or 88.6% retracement level
  • if BC managed to pull back AB up to the 38.2% level, then CD should be 161.8% retracement. If BC managed to pull back to the 88.6% retracement, then CD should be 261.8% retracement
  • compared to the initial trend XA, CD should reach either the 127.2% or 161.8% retracement level

On a chart, the butterfly harmonic looks like this:

The crab

This is perhaps the most powerful harmonic of all because it represents some very sharp price movements in the markets. Typically, the crab formation looks like this:

For the crab harmonic to be realized, these are the required rules:

  • following the trend XA, a reversal AB should reach the 38.2% or 61.8% retracement level
  • BC then follows, reaching either the 38.2% or 88.6% retracement level of AB
  • trend CD is a reversal on BC, leading up to the 224% retracement if BC reached 38.2% and leading up to 361.8% if BC reached 88.6% retracement
  • overall, the final trend CD should be a 161.8% retracement of the initial trend XA

On an actual trading chart, this harmonic pattern could be seen as follows:

 

Find other trading strategies in the links below:

Pivot points strategy

Currency correlation and how to use it

Looking for market correction

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Risk Warning: Your capital is at risk. Statistically, only 11-25% of traders gain profit when trading Forex and CFDs. The remaining 74-89% of customers lose their investment. Invest in capital that is willing to expose such risks.
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