Harmonic Trading Patterns in Trading

Alexandros Theophanopoulos
13 Min read

This article will provide traders with a detailed explanation of what Harmonic Trading Patterns are, how harmonic trading patterns are used in currency markets, as well as, exploring market harmonics, harmonic ratios, and much more! All of this is based on teachings from Scott M. Carney.

Depicted: MetaTrader 4 Supreme Edition - Session Map - Disclaimer: Charts for financial instruments in this article are for illustrative purposes and does not constitute trading advice or a solicitation to buy or sell any financial instrument provided by Admirals (CFDs, ETFs, Shares). Past performance is not necessarily an indication of future performance.

The price action trading domain can be made significantly deeper by taking a look at the advanced trading method known as 'harmonic trading'. Scott M. Carney, President and Founder of HarmonicTrader.com, has defined a system of price pattern recognition and Fibonacci measurement techniques that comprise the Harmonic Trading approach.

He has named and defined harmonic patterns such as the Bat pattern, the ideal Gartley pattern, and the Crab pattern. He is the author of three books on the subject: The Harmonic Trader; Harmonic Trading of the Financial Markets: Volume One; and Harmonic Trading of the Financial Markets: Volume Two.

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Harmonics Patterns: An Introduction

Roots of Harmonic Trading can be tracked down to the Gartley pattern. The Gartley "222" pattern is named from the page number that can be found in H.M. Gartley's book "Profits in the Stock Market".

So, what is a Gartley pattern?

A Gartley pattern is very similar to a bullish W or bearish M. It appears when the price has been moving in an uptrend or downtrend but has started to show signs of correction.

Ideal Gartley patterns look something like this:

  • Move AB should be the .618 retracement of move XA
  • Move BC should be either a .382 or a .886 retracement of move AB
  • If the retracement of move BC is .382 of move AB, then CD should be 1.272 of move BC
  • Consequently, if move BC is .886 of move AB, then CD should extend 1.618 of move BC
  • Move CD should be A .786 retracement of move XA

The Gartley pattern is traded from point D. Traders opt to buy or sell at point D, depending on the pattern direction.

Harmonics Patterns: Market Harmonics

As time has passed, the popularity of the Gartley pattern has grown, and traders have come up with their own variations. Scott M Carney and his harmonic trading techniques were among the most popular and successful. Harmonics is the process of identifying the market's rhythm or its pulse, and then exploiting its trading opportunities. They provide us with visual occurrences that have tendencies to repeat themselves over and over again.

This methodology assumes that trading patterns or cycles, like many other patterns and cycles in life, repeat themselves. The key is to identify these patterns and to then enter or exit a position, based on a high degree of probability that the same historic price action will occur. Although these patterns are not 100% accurate, the situations have been historically proven. If these setups are identified correctly, it is possible to identify significant opportunities with very limited risk.

Next, we will observe the evolution of the NQ100 over time. If you want to see its price in real-time, you can download the MetaTrader 5 trading platform for free:

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Harmonic Ratios

In Harmonic trading we distinguish between:

  1. Primary Ratios
  2. Primary Derived Ratios
  3. Complementary Derived Ratios.

Primary Ratios

Directly derived from the Fibonacci Number Sequence.

  • 0.618 = Primary Ratio
  • 1.618 = Primary Projection

Primary Derived Ratios

  • 0.786 = Square root of 0.618
  • 0.886 = Fourth roof of 0.618 or Square root of 0.786
  • 1.130 = Fourth root of 1.618 or Square root of 1.27
  • 1.270 = Square root of 1.618

Complementary Derived Ratios

  • 0.382 = (1 - 0.618) or 0.618e2
  • 0.500 = 0.770e2
  • 0.707 = Square root of 0.50
  • 1.410 = Square root of 2.0
  • 2.000 = 1 + 1
  • 2.240 = Square root of 5
  • 2.618 = 1.618e2
  • 3.141 = Pi
  • 3.618 = 1 + 2.618

Harmonic Trading Patterns and PRZ

Harmonic patterns are defined by specific price structures, and quantified by Fibonacci calculations. These patterns represent price structures that contain combinations of distinct and consecutive Fibonacci retracements and projections. If we calculate various Fibonacci aspects of a specific price structure, we can identify harmonic pattern areas that will hint at potential turning points in price action.

Scott M. Carney has identified those reversal spots as the PRZ—The Potential Reversal Zone. A well-defined PRZ usually provides some type of initial reaction during the first test of most harmonic patterns. The initial test can occur quickly, and on high volatility it can immediately reject the price. Let's take a closer look at harmonic patterns as described by Scott M. Carney:

The Shark Pattern

The harmonic Shark pattern is identified as shown in the picture below and uses 0, X, A, B, C swing points to name the pivot/swing legs. It is occasionally referred to as an emerging 5-0 pattern. In the example below, we can see an example of the bearish shark pattern with its PRZ zone.

Depicted: EURUSD - MetaTrader 4 (MT4) chart - Bearish shark pattern - Disclaimer: Charts for financial instruments in this article are for illustrative purposes and does not constitute trading advice or a solicitation to buy or sell any financial instrument provided by Admirals (CFDs, ETFs, Shares). Past performance is not necessarily an indication of future performance.

AB=CD Pattern

The AB=CD pattern is a 4-point price structure wherein the initial price segment is partially retraced and followed by an equidistant move from the completion of the pullback. In Classic AB=CD, the BC is a retracement of 61.8% – 78.6% of AB, with CD being the extension leg of 127.2% to 161.8% (equal in price distance). In AB=CD extension, CD leg is an extension of AB between 127.2% – 161.8%.

Depicted: EUR/USD - MT4 chart - AB=CD bullish pattern - Disclaimer: Charts for financial instruments in this article are for illustrative purposes and does not constitute trading advice or a solicitation to buy or sell any financial instrument provided by Admirals (CFDs, ETFs, Shares). Past performance is not necessarily an indication of future performance.

The Crab Pattern

Key elements of the Crab pattern:

  • B point is a 0.618 retracement of XA or less
  • Extreme BC projection that is typically: 2.618, 3.14, or 3.618
  • Alternate 1.27 or 1.618 AB=CD pattern required
  • 1.618 XA projection: as the defining limit with the structure
  • C point with range between 0.382 and 0.886

The pattern can display rapid price action movement, and that often results in fast reversals at the PRZ.

Depicted: EUR/USD - MT4 chart - Crab bearish pattern - Disclaimer: Charts for financial instruments in this article are for illustrative purposes and does not constitute trading advice or a solicitation to buy or sell any financial instrument provided by Admirals (CFDs, ETFs, Shares). Past performance is not necessarily an indication of future performance.

The Bat Pattern

The Bat is a very accurate pattern, usually requiring a smaller stop-loss than most patterns. The pattern incorporates the powerful 0.886 XA retracement as the defining element within the PRZ. Other key elements of the Bat pattern are:

  • Move AB should be the .382 or .500 retracement of move XA
  • BC projection must be at least 1.618
  • If the retracement of move BC is .382 of move AB, then CD should be a 1.618 extension of move BC
  • AB=CD pattern is usually extended
  • 0.886 XA retracement
  • CD should be .886 retracement of move XA.
Depicted: EURJPY - MT4 chart - Bat bearish pattern - Disclaimer: Charts for financial instruments in this article are for illustrative purposes and does not constitute trading advice or a solicitation to buy or sell any financial instrument provided by Admirals (CFDs, ETFs, Shares). Past performance is not necessarily an indication of future performance.

The Butterfly Pattern

Scott M. Carney believes that the ideal butterfly pattern needs to have a specific alignment of different Fibonacci measures at each point within the structure. The Butterfly is similar to the Gartley pattern, and the PRZ zone is defined by a mandatory retracement of the XA leg as the point. The ideal Butterfly has 0.786 as XB, but traders might also use various measurements such as 0.952 of the XB.

The key elements of this pattern are:

  • Move AB should be the .786 retracement of move XA
  • Move BC can be either a .382 or a .886 retracement of move AB
  • If the retracement of move BC is .382 of move AB, then CD should be a 1.618 extension of move BC
  • If The move BC is a .886 of move AB, then the CD should extend 2.618 of move BC
  • CD should be 1.27 or a 1.618 extension of move XA.
Depicted: AUD/NZD - MT4 chart - Butterfly bullish pattern - Disclaimer: Charts for financial instruments in this article are for illustrative purposes and does not constitute trading advice or a solicitation to buy or sell any financial instrument provided by Admirals (CFDs, ETFs, Shares). Past performance is not necessarily an indication of future performance.

The Cypher Pattern

Originally discovered and defined by Darren Oglesbee, the Cypher pattern is a 4-leg pattern. It is not as common as other patterns, though it's widely used in Harmonic trading and analysis. Due to its rare occurrence, traders should make room for adjustments to the Fib levels that are used in the pattern charting.

The key elements of this pattern are:

  • The Cypher pattern starts with the X and A points
  • Point B retraces to the 0.382 – 0.618 Fibonacci level of the leg XA
  • Point C is formed when prices extend the XA leg by at least 1.272 or within the 1.130 – 1.414 Fibonacci extension
  • Point D is formed when it retraces the 0.782 Fibonacci level of XC.
Depicted: EUR/JPY - MT4 chart - Cypher bullish pattern - Disclaimer: Charts for financial instruments in this article are for illustrative purposes and does not constitute trading advice or a solicitation to buy or sell any financial instrument provided by Admirals (CFDs, ETFs, Shares). Past performance is not necessarily an indication of future performance.

Trading Harmonic Patterns: The Easier Way

For all traders that are interested in trading Harmonic patterns, It is highly recommended that you read the works of Scott M. Carney before you begin trading. When you arm yourself with a proper understanding of patterns, PRZ, terminal bars, and everything else that is important for harmonic trading, only then should you begin your search for automatic harmonic indicators.

There are several harmonic indicators and software programs that will automatically detect various harmonic trading patterns. Carney introduced a unique position management system based on a 0.382 Trailing Stop, measured from the reversal point to the reversal extreme.

Trade Management in Harmonic Trading

Depicted: AUD/NZD - MT4 chart - A Bullish Butterfly - Disclaimer: Charts for financial instruments in this article are for illustrative purposes and does not constitute trading advice or a solicitation to buy or sell any financial instrument provided by Admirals (CFDs, ETFs, Shares). Past performance is not necessarily an indication of future performance.

Featured in the image above is an example of a bullish Butterfly pattern. The first target is related to point B on the chart. It is the level which indicates the price drop during the AB decrease. The second target marks the C point on the chart, and the price top after the BC increase. The third target is the high, which appears as a result of the XA increase.

Point D is the entry. Stops go below point D.

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Frequently Asked Questions

 

What are harmonic trading patterns?

Harmonic trading patterns are a set of technical analysis tools used by traders to identify potential reversal points in financial markets. These patterns are based on Fibonacci ratios and geometric shapes, such as Gartley, Butterfly, and Bat patterns. Traders use them to predict future price movements by recognizing specific harmonic structures on price charts.

 

How do I identify harmonic trading patterns?

To identify harmonic trading patterns, you'll need to study price charts and look for specific price and Fibonacci ratio relationships. Common tools include the Fibonacci retracement and extension levels. For instance, in a Bullish Gartley pattern, you'll typically see a sequence of higher highs and lower lows, forming specific ratios like 0.618 or 0.786 between price moves. Traders often use software or charting platforms that can automatically identify these patterns.

 

What's the purpose of trading with harmonic patterns?

The primary purpose of trading with harmonic patterns is to anticipate potential trend reversals or trend continuation points in the market. Traders use these patterns as a part of their technical analysis to make informed decisions about entering or exiting positions. When a harmonic pattern is identified, it can serve as a signal to take action, such as placing a buy or sell order, depending on the pattern and market conditions.

Keep in mind that while harmonic patterns can be valuable tools, they should be used in conjunction with other technical and fundamental analysis methods, and it's essential to manage risk by implementing stop-loss orders and proper position sizing in your trading strategy.

 

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