Recently, I’ve been studying a pretty interesting trading methodology and found that many top traders are using harmonic patterns to catch market reversal points. I used to think this was just a niche technique, but after in-depth research, I realized why the win rate can reach 78.7%. Today, I want to organize what I’ve learned, maybe it can help friends who want to improve their trading skills.

First, let’s talk about the most basic ABCD pattern, which is the preferred entry point for harmonic patterns. Its logic is simple: three waves, four points—impulse → correction → impulse—using Fibonacci tools to precisely locate. The retracement of the BC segment usually hits the 0.618 level, and the length of CD matches AB. After the pattern completes, you can open a position at point D, with relatively manageable risk.

Moving to more complex patterns, there is the Bat pattern, confirmed by Scott Carney in 2001. It adds an X point, making the structure more intricate. The key is that point B must stop at 50% of XA, and the extension of CD should be at least 1.618 times BC. This pattern is more difficult to identify, but once confirmed, it’s easy to find potential reversal zones.

Next is the Butterfly pattern, discovered by Bryce Gilmore as a reversal tool. The 0.786 retracement of XA is particularly important; it directly determines the B point’s position and thus the entire reversal zone. This pattern is very helpful for traders looking to enter at extreme positions.

The Crab pattern, also from Scott Carney, is notable because it allows entries at very extreme high or low levels. The core is the 1.618 extension of XA, and the projection ranges of BC (2.618-3.14-3.618) define the boundaries of the complete pattern. It applies to both bullish and bearish scenarios, with symmetrical logic.

There’s also the Deep Crab, a variation of the Crab pattern, where the B point retracement changes to 0.886, and the BC projection zone becomes 2.24 to 3.618. The details differ, but the thinking remains consistent.

The Gartley pattern has two strict rules: B must be at 0.618 of XA, and D must be at 0.786. It’s somewhat similar to the Bat, but B’s position is more precise. Stop-loss is usually set at X, and take-profit at C.

The Shark pattern, also by Scott Carney, involves five waves and five points. It looks complicated but is actually straightforward. The retracement of AB should be between 1.13 and 1.618 of XA, BC is 113% of OX, and the target for CD is the 50% retracement of BC. Trade based on point C, with D as the take-profit.

Finally, the Three Drives pattern appears the least frequently because it requires perfect symmetry in price and time. It has five points, three drives, and two retracements. The drives 2 and 3 should extend to 127.2% or 161.8% of previous retracements. The timing should also be as symmetrical as possible. It’s very rare to encounter, so don’t force-fit it.

Regarding pattern recognition, bullish and bearish harmonic patterns are logically opposite but follow the same rules. A bullish pattern suggests the price will go up, so you go long; a bearish pattern indicates a decline, so you go short.

To truly master harmonic pattern trading, I recommend: first, spend time thoroughly understanding the theoretical basics; second, decide whether to follow a bullish or bearish strategy; third, repeatedly practice pattern recognition on actual charts. Don’t rush to place orders—first, draw them out on paper a hundred times; the feeling will be completely different.

Harmonic patterns are indeed powerful tools for predicting market reversals, but only if you truly understand the Fibonacci logic behind them. Many people find the tutorials simple, but actual trading involves many pitfalls. It’s best to practice with historical candlestick data until you can quickly identify patterns, then consider real trading. Lastly, if a pattern is incomplete or lacks symmetry, decisively abandon it—don’t trade just for the sake of trading. Let’s encourage each other!