## The ABCD and the Three-Drive

#### The ABCD

For both the bullish and bearish versions of the ABCD chart pattern, the lines AB and CD are known as the **legs** while BC is called the **correction** or **retracement**. If you use the Fibonacci retracement tool on leg AB, the retracement BC should reach until the 0.618 level. Next, the line CD should be the 1.272 Fibonacci extension of BC.

Simple, right? All you have to do is wait for the entire pattern to complete (reach point D) before taking any short or long positions.

Oh, but if you want to be extra strict about it, here are a couple more rules for a valid ABCD pattern:

- The length of line AB should be equal to the length of line CD.
- The time it takes for the price to go from A to B should be equal to the time it takes for the price to move from C to D.

#### Three-Drive

The three-drive pattern is a lot like the ABCD pattern except that it has three legs (now known as drives) and two corrections or retracements. Easy as pie! In fact, this three-drive pattern is the ancestor of the Elliott Wave pattern.

As usual, you’ll need your hawk eyes, the Fibonacci tool, and a smidge of patience on this one.

As you can see from the charts above, point A should be the 61.8% retracement of drive 1. Similarly, point B should be the 0.618 retracement of drive 2. Then, drive 2 should be the 1.272 extension of correction A and drive 3 should be the 1.272 extension of correction B.

By the time the whole three-drive pattern is complete, that’s when you can pull the trigger on your long or short trade. Typically, when the price reaches point B, you can already set your short or long orders at the 1.272 extension so that you won’t miss out!

But first, it’d be better to check if these rules also hold true:

- The time it takes the price to complete drive 2 should be equal to the time it takes to complete drive 3.
- Also, the time to complete retracements A and B should be equal.

## Trading The Gartley Pattern

Once upon a time, there was this insanely smart trader dude named Harold McKinley Gartley.

He had a stock market advisory service in the mid-1930s with a huge following. This service was one of the first to apply scientific and statistical methods to analyze the stock market behavior.

According to Gartley, he was finally able to solve two of the biggest problems of traders: what and when to buy.

Soon enough, traders realized that these patterns could also be applied to other markets. Since then, various books, trading software, and other patterns (discussed below) have been made based on the Gartleys.

#### Gartley a.k.a. “222” Pattern

The Gartley “222” pattern is named for the page number it is found on in H.M. Gartleys book, *Profits in the Stock Market*. Gartleys are patterns that include the basic ABCD pattern we’ve already talked about, but are preceded by a significant high or low.

Now, these patterns normally form when a correction of the overall trend is taking place and look like ‘M’ (or ‘W’ for bearish patterns). These patterns are used to help traders find good entry points to jump in on the overall trend.

A Gartley forms when the price action has been going on a recent uptrend (or downtrend) but has started to show signs of a correction.

What makes the Gartley such a nice setup when it forms is the reversal points are a Fibonacci retracement.

This pattern can be hard to spot and once you do, it can get confusing when you pop up all those Fibonacci tools. The key to avoiding all the confusion is to take things one step at a time.

In any case, the pattern contains a bullish or bearish, but is preceded by a point (X) that is beyond point D. The “perfect” Gartley pattern has the following characteristics:

- Move AB should be the .618 retracement of move XA.
- Move BC should be either .382 or .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. Consquently, if move BC is .886 of move AB, then CD should extend 1.618 of move BC.
- Move CD should be .786 retracement of move XA

## Gartley Mutants: The Animals

As time went by, the popularity of the Gartley pattern grew and people eventually came up with their own variations.

#### The Crab

In 2000, Scott Carney, a firm believer in harmonic price patterns, discovered the “Crab”.

According to him, this is the most accurate among all the harmonic patterns because of how extreme the Potential Reversal Zone (sometimes called “price better reverse or imma gonna lose my shirt” point) from move XA.

This pattern has a high reward-to-risk ratio because you can put a very tight stop loss. The “perfect” crab pattern must have the following aspects:

- Move AB should be the .382 or .618 retracement of move XA.
- Move BC can be either .382 or .886 retracement of move AB.
- If the retracement of move BC is .382 of move AB, then CD should be 2.24 of move BC. Consquently, if move BC is .886 of move AB, then CD should be 3.618 extension of move BC.
- CD should be 1.618 extension of move XA.

#### The Bat

Come 2001, Scott Carney founded another Harmonic Price Pattern called the “Bat.” The Bat is defined by the .886 retracement of move XA as Potential Reversal Zone. The Bat pattern has the following qualities:

- Move AB should be the .382 or .500 retracement of move XA.
- Move BC can be either .382 or .886 retracement of move AB.
- If the retracement of move BC is .382 of move AB, then CD should be 1.618 extension of move BC. Consquently, if move BC is .886 of move AB, then CD should be 2.618 extension of move BC.
- CD should be .886 retracement of move XA.

#### The Butterfly

Then, there is the Butterfly pattern!

Created by Bryce Gilmore, the perfect Butterfly pattern is defined by the .786 retracement of move AB with respect to move XA. The Butterfly contains these specific characteristics:

- Move AB should be the .786 retracement of move XA.
- Move BC can be either .382 or .886 retracement of move AB.
- If the retracement of move BC is .382 of move AB, then CD should be 1.618 extension of move BC. Consquently, if move BC is .886 of move AB, then CD should extend 2.618 of move BC.
- CD should be 1.27 or 1.618 extension of move XA.