Shark Pattern in Harmonic Analysis: Construction Rules and Trading Targets

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The Shark pattern in harmonic analysis: construction rules and trading targets

The Shark harmonic pattern is a relatively young yet powerful technical analysis model developed by Scott Carney in 2011. It belongs to the category of reversal patterns

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that predict potential changes in the direction of market price action. The Shark differs from more traditional harmonic figures, such as the Gartley or Butterfly, due to its unique structure and Fibonacci sequence, as well as the fact that it often serves as a precursor to the 5-0 pattern.

Definition and structure

The Shark pattern is a five-point formation denoted by points O, X, A, B, and C. Visually, it may resemble a shark’s open maw or the letters M (for a bullish pattern) and W (for a bearish one), but its key distinction lies in the specific Fibonacci ratios between price swings. This model is based on the concept of an extreme harmonic impulse wave that retests support/resistance zones converging in specific Fibonacci areas.

Pattern construction rules

To correctly identify the Shark pattern, strict Fibonacci ratios must be observed for each segment:

Segment OX: This is the initial impulse move that sets the scale for the entire structure.

Segment XA: The correction from point X.

Segment AB: The extension of segment XA. Point B must extend beyond point X. The ratio of AB to XA is typically between 113% and 161.8%.

Segment BC: This is the move leading to the Potential Reversal Zone (PRZ). Point C is the pattern’s completion point and forms the PRZ. To confirm the Shark pattern, point C must meet the following criteria:

Be a 113% extension of the OX segment. Show an extension from 161.8% to 224% (or 222.4%) of segment AB. Frequently, the PRZ (point C) coincides with an 88.6% retracement of the OX segment, while the 113% extension of OX should not be exceeded.

These ratios are critical for validating the pattern and distinguishing it from other harmonic formations. Deviations from these ranges may indicate an incorrect identification of the pattern.

Trading targets and risk management

Trading the Shark pattern involves looking for an entry point in the area of the Potential Reversal Zone (PRZ), which forms at point C. After a reversal signal (e.g., a candlestick pattern) is confirmed, a trader can open a position in the direction opposite to the most recent move (BC).

Entry point: Usually located around the PRZ (point C). Some sources suggest entering at the 88.6% retracement of OX.

Stop-loss placement: It is recommended to place the stop-loss beyond the minimum/maximum point of the PRZ (below for a bullish pattern, above for a bearish one). Placing the stop-loss at the level of point C is also suggested.

Defining profit targets (take-profit):

Common targets are the levels of points A and B. The 50% level of the O-C move is often considered an optimal target, especially since the Shark is a precursor to the 5-0 pattern. Another approach involves setting two targets: the first at 38.2% and the second at 61.8% of the total move from the high to the low (or vice versa) within the PRZ. Some traders use 50-61.8% of the BC segment.

Given that the Shark pattern often leads to sharp reversals, an active trade management strategy is required. Using multiple profit targets and taking partial profits at each level allows for effective management of risk and profit potential. A high risk-to-reward ratio is one of the key advantages of using harmonic models.