Introduction

The Elliott wave principle was developed by R.N. Elliott in his 1938 book, The Wave Principle. The Elliott wave principle is a form of technical analysis that attempts to analyse financial market cycles and forecast market trends by looking into extremes in investor psychology expressed by highs and lows as well as prices and several other factors.

This article serves as a basic introduction to Elliott wave theory. A basic 5-wave impulse sequence and 3-wave corrective sequence are also explained. While Elliott Wave Theory can get more complicated than this 5-3 combination, this article will only focus on the very basics.


Basic Sequence

There are two types of waves in the sequence that is the impulsive and corrective phases. Impulsive waves move in the direction of the larger degree wave. When the larger degree wave is bullish, advancing waves are impulsive and declining waves are corrective. When the larger degree wave is down, impulse waves are down and corrective waves are up.
Fig 1: Elliot Wave – Basic 5 wave sequence.

Fig 1 above shows a rising 5-wave sequence. Waves 1,3 and 5 are impulse waves because they move in the same direction with the trend, whereas waves 2 and 4 are corrective waves because they move against the bigger trend.

Fig 2: Elliott Wave - Basic 3 Wave correction

In Fig 2 above it can be noted that waves a and c are impulse waves. This is because they are in the direction of the larger degree wave as the entire move is clearly down. Wave b, on the other hand, moves against the larger degree wave and is a corrective wave.

Combining a basic 5 wave impulse sequence (Fig 1) with a basic 3 wave corrective sequence (Fig 2) yields a complete Elliott Wave sequence, which is a total of 8 waves. According to Elliott, this complete sequence is divided into two distinct phases: the impulse phase and the corrective phase as illustrated in Fig 3 below.

Fig 3: Elliot wave - Complete 8 wave cycle

The abc corrective phase represents a correction of the larger impulse phase.


Rules


There are only three rules when it comes to interpreting Elliott Wave and they are unbreakable. Guidelines however, are bendable and subject to interpretation.

Rule 1: Wave 2 cannot retrace more than 100% of Wave 1.
Rule 2: Wave 3 can never be the shortest of the three impulse waves.
Rule 3: Wave 4 can never overlap Wave 1.

The rules have been illustrated in fig 4 below.
Fig 4: Elliott Wave - Three rules

According the rules wave 2 cannot move below the low of Wave 1 as a break below this low would call for a re-count.

The effect of rule 2 is that wave 3 cannot be the shortest in the sequence. 1 or 5 can be longer than Wave 3, but both cannot be longer than Wave 3. Elliott Wave indicates that Wave 3 must exceed the high of Wave 1 and failure to exceed this high would call for a re-count.

The third, and final rule, is that Wave 4 cannot overlap Wave 1, which means the low of Wave 4 cannot exceed the high of Wave 1 and such a violation would call for a re-count.


Guidelines


Guidelines unlike rules, should hold true most of the time, not necessarily all of the time.

Guideline 1: When Wave 3 is the longest impulse wave, Wave 5 will approximately equal Wave 1.
Guideline 2: The forms for Wave 2 and Wave 4 will alternate. If Wave 2 is a sharp correction, Wave 4 will be a flat correction. If Wave 2 is flat, Wave 4 will be sharp.
Guideline 3: After a 5-wave impulse advance, corrections (abc) usually end in the area of prior Wave 4 low.

Fig 5 below gives an illustration of these guidelines

Fig 5: Elliott Wave - Guidelines

The first guideline is useful for targeting the end of Wave 5. In a larger uptrend, chartists simply apply the length of Wave 1 to the low of Wave 4 for an upside target.

The second guideline is useful for determining the time of correction for Wave 4. After a sharp decline for Wave 2, chartists can expect a relatively flat correction for Wave 4. If Wave 2 is relatively flat, then chartists can expect a relatively sharp Wave 4.
Waves I and II in Fig 5 above are the larger degree waves.

The third guideline is useful for estimating the end of a Wave II correction after a Wave I advance. Waves 1-2-3-4-5 are lesser degree waves within Wave I. Once the Wave II correction unfolds, chartists can estimate its end by looking at the end of the prior wave 4.


Does it work?


The biggest complaint is that it’s almost impossible to know when you are simply correcting or if the wave is breaking down even further. This complexity often has people looking for other alternatives. It does seem to work out better on longer-term charts, but the question then becomes whether or not there is any predictive quality?

However, for those who wish to jump into the minutiae of market movement and psychology, it does serve as an interesting tool. It is well known on Wall Street and is used by a lot of technical analysts.


Conclusions


The Elliott wave counts start with a process of elimination. Apply the rules for the first count attempt and then the guidelines on the second. Eliminating bogus counts paves the way to a more accurate count. Even with accurate counts, chartists will still need to re-evaluate and adjust counts as new price information emerges.

There is a running joke, “if you get five Elliott wave traders in the same room, you’ll get five different Elliott Wave counts.” Unfortunately, there is a bit of truth to that joke at times, and therefore it should be thought of as nothing more than another tool that gives you the odds of a trade working out, not necessarily the “holy grail” of Forex trading theory.
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