The Shark pattern is a distinct 5-point reversal structure that was discovered by Scott Carney in 2011. It is similar to the Bat Pattern , except for the C point exceeding the BC leg. It can point to a strong counter-trend move. The potential Reversal Zone (PRZ) is defined by the following harmonic levels: the 0.886 retracement of initial leg and the 1.13 reciprocal ratio of the initial leg. Targets can be various retracements of the CD leg, all the way up to C itself. There are different methods of determining where the stop would go. Some put it beyond the next structure level after the D point, others choose the 1.41 extension of XA.

Conservative traders look for additional confirmation before entering a trade based on an indicator value, a specific candlestick pointing at a reversal or confluence with other methods. The Shark pattern can be either bullish or bearish . It is as effective as other harmonic patterns and a common variation on trading this pattern is to trade the last leg to completion. TradingView has a smart drawing tool that allows users to visually identify this price pattern on a chart.