Recently, I’ve been chatting with some trading experts and discovered that their secret weapon for identifying trading opportunities is harmonic patterns. Honestly, learning this stuff is quite challenging, but once you master it, your win rate can reach 70-80%, which is already pretty good for traders.

The core logic of harmonic patterns is actually very simple: using Fibonacci sequences and specific wave combinations to find potential reversal zones in the market. Today, I want to delve into these common harmonic patterns, hoping to help everyone understand this trading system better.

First is the ABCD pattern, which is the most basic harmonic pattern. It consists of three waves and four points: AB is the impulsive wave, BC is the corrective wave, and then CD is another impulsive wave. In simple terms, the length of CD should equal AB, and the retracement of BC usually hits precisely the 0.618 Fibonacci level. Traders can place orders near the potential reversal zone at point C or wait for the pattern to complete and open positions at point D.

The Bat pattern adds an extra wave and an additional X point. This pattern was defined by Scott Carney in 2001. Its characteristic is that the retracement at point B should stop at 50% of the XA wave. The CD segment must extend at least 1.618 times the length of BC, sometimes even reaching 2.618. The potential reversal zone (PRZ) formed by this pattern is quite precise, and many traders rely on it to determine entry points.

The Butterfly pattern was discovered by Bryce Gilmore. It uses different Fibonacci ratios to identify retracement levels. The key is the 0.786 retracement of the XA segment, which helps accurately draw point B. The Crab and Deep Crab patterns are both reversal patterns, with the main feature of allowing traders to enter at extreme high or low levels. The Crab pattern uses the 1.618 extension of XA to identify potential reversal zones, while the Deep Crab requires point B’s retracement to be 0.886 of XA.

The Gartley pattern has two strict rules: point B’s retracement must be 0.618 of XA, and point D’s retracement must be 0.786 of XA. The Shark pattern, discovered by Scott Carney, consists of five waves and requires satisfying three Fibonacci rules: the AB retracement is between 1.13 and 1.618, BC is 113% of the OX segment, and the CD target is a 50% retracement of BC.

The Three Drives pattern is relatively rare because it requires perfect symmetry in price and time. It consists of three impulsive waves and two retracements. When the third impulsive wave completes, the price usually reverses. Drives 2 and 3 should extend to 127.2% or 161.8% of A and C retracements, which are typically 61.8% or 78.6% of the previous wave’s movement.

The key to identifying harmonic patterns lies in understanding whether the market is bullish or bearish. Bullish harmonic patterns suggest the price may go higher, so traders can consider long positions; bearish patterns indicate downward risk and are suitable for shorting. However, it’s important not to force-fit harmonic patterns onto charts—if the pattern isn’t symmetrical enough or has gaps, it’s better to skip that opportunity.

To start trading with harmonic patterns, you should first spend time learning the underlying theory, then determine whether you’re bullish or bearish, and finally look for these patterns in real markets. Harmonic patterns are a mature technical analysis tool; mastering them can significantly improve your trading success rate. If you’re interested in this system, you can begin practicing on platforms like Gate and gradually accumulate experience.