CastAway Trader
CastAway Trader Predict the Next Market Move


What is the Harmonic Elliott Wave theory?

Part 2. What is the Harmonic Elliott Wave and how it is different from the classic version of the Elliott Wave Theory
In the first part of this article I noted that the major discovery made by R.N.Elliott in 1930’s was a phenomenon of repeating patters regularly played out by financial markets. More than eighty years ago he studied self made charts of the US Industrials stock index and discovered that any major trend either up or down had a similar structure that could be subdivided into five distinctive segments or “waves” (see the chart below).
The waves 1, 3 and 5 drive the price in direction of the main trend. In up trend each of those waves drive price to higher highs. In a down trend each of those waves push price to lower lows. And waves 2 and 4 are temporary countertrend pullbacks. You can read more details about this pattern in the first part of this article.

But even more important breakthrough he made was the discovery of fractal nature of price structures. That means that the same price patterns combined together formed identical pattern on a larger scale.

As you can see on the chart below, Elliott proposed a theory according to which waves 1, 3 and 5 of the five wave fractal are themselves subdivided into five waves of a smaller size ( subwaves i, ii, iii, iv and v ).

A word “theory” comes from the Greek theoria, which means “contemplation or speculation.” A theory is a set of organized principles that is supposed to explain some natural phenomenon. In many cases theory is different from practice, when those organized principles are tested. This is exactly what happened to the Wave Principle formulated by R.N. Elliott. He simply went too far when he proposed that waves 1, 3 and 5 themselves represent smaller five wave patterns. That made the structure too perfect and rigid for semi random price structures. Because price was reluctant to follow five wave fractal all the time instead of finding a more flexible uniform fractal Elliott proposed a number of acceptable exceptions to the original rules. The wide variety of exceptions like “leading diagonal”, “ending diagonal” or “truncation” made the Classic Elliott Wave theory highly susceptible to subjective interpretations and difficult to learn and apply in real trading.

In 1999 Ian Copsey, an experienced technical analyst who had been practicing the classic Wave Principle for years published a book where he proposed a simple and elegant modification to the classic Elliott Wave theory. He proposed that the the impulsive waves 1, 3 and 5 within the five wave fractal were subdivided into three waves rather than perfect five waves as proposed R.N.Elliott.

He called that modified version of the Elliott Wave theory “the Harmonic Elliott Wave theory”. That was not something completely new because that modified version acknowledged that the classic five wave fractal is the backbone of any trending move either up or down. Moreover, the modified version did not propose any change to classifications and rules with respect to corrective waves 2 and 4 as originally proposed by R.N.Elliot, the founding father of the Wave Principle. However, that small change in subdivision of impulsive waves 1, 3 and 5 consequently increased number of waves in direction of the main trend from three (waves 1, 3 and 5 ) to six ( waves A of 1, C of 1, A of 3, C of 3, A of 5 and C of 5 ). And it also increased number of corrective waves from two ( waves 2 and 4 ) to five ( waves B of 1, 2, B of 3, 4 and B of 5 ).

If you are an expert in the classic version of the Elliott Wave theory at this point you may feel anger and denial. You may even feel almost irresistible urge to throw something into your monitor. Give me a second and I will show you two more charts that may help you to calm down and encourage you to continue reading that provocative text.

Do you recognize that pattern below called by R.N. Elliott “the Leading Diagonal”?

Would you agree that the pattern below called by R.N.Elliott “the Ending Diagonal” has the very same structure? Indeed, all the five waves, impulsive and corrective alike of both, the Leading Diagonal and the Ending Diagonal are subdivided into a-b-c waves.
Now I would ask you to compare those two patterns, the Leading Diagonal and the Ending Diagonal to the structure of the modified Five Wave fractal proposed by the Harmonic Elliott wave I introduced above. Surprise, surprise, they are identical! That confirms that R.N. Elliott himself recognized that pattern. But the idea that in every five wave fractal waves 1, 3 and 5 are perfectly subdivided into smaller five wave fractals sounded so enticing and elegant so he introduced that pattern for selective use only. As I explained in the first part of this article he was forced to introduce that patter because he stumbled upon numerous cases when price did not follow the ideal theoretical five wave fractal on a smaller time frame. Instead, in those cases all the five waves were subdivided into a-b-c’s rather than five subwave fractals.

Now it is you turn to ask what the benefit of that modification is. It turned out that this modified fractal fits the natural path of price much better then the original one. First, you do not longer need to keep in mind numerous exceptions like Ending or Leading Diagonals and you should not worry about “truncations”. Moreover, that new version of the Five Wave fractal perfectly explains cases with extra strong wave 3. The classic version of the Wave principle provides you with specific additional structures called “extended” and “double extended” while the Harmonic Elliott Wave equips you with one legacy five wave structure that fits all the different cases including extended ones!!!

I will dive deeper into detailed comparison of practical application in trading of those two versions of the five wave fractal in the third part of this article.

Now I want to propose a theory to justify why the modified version of the five wave fractal is better suited to describe trending moves in prices.

When Elliott introduced the five wave fractal he acknowledged that he could not find any rational explanation of the fractal nature of the markets that keep playing out similar patterns:

“possibly the reason why I have not yet, and possibly will never know why this series occurs is because it is a law of nature. The laws of nature, and incidentally economics, are ruthless, which is as it should be.”

Let me offer you a potential explanation of the phenomenon of repeating five wave fractal as modified by Ian Copsey.

In 1962 Everett Rogers, a professor of rural sociology, published his book “Diffusion of Innovations”. This book was based on his findings in research that examined how ideas are spread among groups of people. He identified five major stages of adoption of innovation, new idea, product or practice by members of a given culture. Rogers found out that new ideas are not adopted by all individuals in a social system at the same time. It takes different time for different people to begin using the new idea. He proposed a classification of all the members of a society into five groups based on criteria of how long it takes for them to begin using the new idea.

Since its start in rural sociology, Diffusion of Innovations has been applied to numerous contexts, including medical sociology, communications, marketing, development studies, health promotion, organizational studies, knowledge management and conservation biology.

Let’s try to apply tenets of the diffusion theory to financial markets in order to explain different stages of a trending move by type of investors who drive the price at different stages of rallies. Our goal would be to align the basic five wave up fractal proposed by the Harmonic Elliott Wave theory with classification of social groups proposed by Rogers.

“Innovators” or “Reversal Hunters” or “Contrarian”.

Innovators are the first customers to try a new product. They are, by nature, risk takers and are excited by the possibilities created by new ideas and new ways of doing things. Innovators are the first 2.5 percent of a group to adopt a new idea.

In financial markets they are “reversal hunters” or “contrarians”. They can’t stand a sustained trending move. They love to oppose themselves to the general prevailing sentiment in the market. They buy when most others are selling and sell when others are buying. They are risk takers and tend to buy too early in the bear market and short too early in the bull market. But they are financially and emotionally prepared to withstand pressure of the market. As Rogers noted: “The innovator is also willing to accept the occasional setback when new ideas prove unsuccessful.” (Rogers, 1971).

That concept perfectly explains why wave 1 of a new developing trend is always weak. The driving force behind the wave 1 of a new trend is “innovators”. There are only few innovators, traders who believe that preceding decline is over and a new trend is under way. The majority of market participants still feels bearish and considers that first move up off a major low made by preceding decline as an opportunity to add to their shorts.

“Early Adopters” or “Experts”

Early adopters tend to be integrated into the local social system more than innovators. People in the early adopter category seem to have the greatest degree of opinion leadership in most social systems. They provide advice and information sought by other adopters about a novelty. The early adopter is usually respected by his or her peers and has a reputation for successful and discrete use of new ideas (Rogers, 1971).

Early adopters will normally have a reasonably high social status. Think of all those traders who post their trading ideas and market analysis on Twitter, Stocktwits or Tradingview and have tens of thousands of followers! They are thought leaders who are considered experts and trusted by thousands of other traders. They do not take as much risk as innovators and tend to make more careful decisions as to whether or not to call a start of a new bullish trend. They will be waiting to get solid confirmation like a bullish cross of the major moving averages. That does not happen in the wave 1 up but it happens in the second leg of an unfolding rally, wave A of 3 up. On average there are 13.5% of a social group who could be considered “Early Adopters”.

“Early Majority” or “Momentum Traders”.

Members of the early majority category will adopt new ideas just before the average member of a social system. They interact frequently with peers, but are not often found holding leadership positions. As the link between very early adopters and people late to adopt, early majority adopters play an important part in the diffusion process. Their innovation-decision time is relatively longer than innovators and early adopters, since they deliberate some time before completely adopting a new idea. Seldom leading, early majority adopters willingly follow in adopting innovations (Rogers, 1971).

“Early Majority” or “Momentum Traders”.

Members of the early majority category will adopt new ideas just before the average member of a social system. They interact frequently with peers, but are not often found holding leadership positions. As the link between very early adopters and people late to adopt, early majority adopters play an important part in the diffusion process. Their innovation-decision time is relatively longer than innovators and early adopters, since they deliberate some time before completely adopting a new idea. Seldom leading, early majority adopters willingly follow in adopting innovations (Rogers, 1971).

When price breaks out over the preceding top of the wave A of 3 the rally starts to accelerate and pullbacks become very shallow. This is when the rally finally begins to draw attention of wide crowds of so called “momentum” traders. This type of traders is reasonably risk averse and wants to be sure that their, often more limited, capital is invested in assets that may quickly appreciate in price. They never try to anticipate a reversal but rather look for an established strong trend to join. They have an active social status but they are not thought leaders. They not only follow the “experts” but early adopters quite often closely communicate with them. When they make decision about joining the very well established trend they take into account opinions of those thought leaders.

“Late Majority”

The late majority are a skeptical group, adopting new ideas just after the average member of a social system. Their adoption may be borne out of economic necessity and in response to increasing social pressure. They are cautious about innovations, and are reluctant to adopt until most others in their social system do so first. An innovation must definitely have the weight of system norms behind it to convince the late majority. While they may be persuaded about the utility of an innovation, there must be strong pressure from peers to adopt (Rogers, 1971).

In financial market this group of traders is too conservative to join a rally when it is accelerating in wave C of 3. They are too cautious and their main concern is not to buy “too late” or “at the top”. They would wait for a pullback of a corrective wave 4 down to buy stocks on weakness.

This category of traders has less interaction with thought leaders ( early adopters ) and tends to make more independent decisions than the other groups of traders. This late majority group is rarely active in the social media, does not have many followers and, as a result, does not provide any form of thought leadership for other traders.

That may be a good explanation why rally in wave A of 5 driven by “Late Majority” is almost never is strong enough to break over the preceding top made by the rally in wave 3. The “Late Majority” got burned trying to play breakouts many times. That is why they buy stocks on weakness and see them when prices approaches important resistance at previous top.

“Laggards are traditionalists”.

Laggards are traditionalists and the last to adopt an innovation. Possessing almost no opinion leadership, laggards are localite to the point of being isolates compared to the other adopter categories. Individual laggards mainly interact with other traditionalists. An innovation finally adopted by a laggard may already be rendered obsolete by more recent ideas already in use by innovators. Laggards are likely to be suspicious not only of innovations, but of innovators and change agents as well (Rogers, 1971).

Laggards are always late to the party. They are the driving force of the final wave C of 5 that completes the whole rally. This is the last spike of price before reversal.

At this point innovators turn skeptical about prospects of this rally and start watching for signs of reversal. This last rally literally drags the laggards into the market when price takes out the previous top made by the wave 3 up. At that point laggards can not longer resist the growing temptation to join that bullish party they have been watching on sidelines. They do not have much available capital to trade and this is why the top of the final spike in wave C of 5 is normally characterized by thin trading volume and participation. This final move up in many cases comes as a spike because at this point the vast majority of traders except for innovators are convinced that this rally will keep going up. Conversely, bears are demoralized by continuation of the rally and they are often forced to close their shorts when price takes out the previous top. That lack of sellers lets such weak buyers as “laggards” to push price to new higher highs despite relatively low amount of fresh buying.

In my opinion, this theory perfectly explains character of each wave. However, you can not apply that theory to the classic five wave fractal originally proposed by R.N. Elliott because he had only three waves in direction of the trend. That is another argument in favor of the modified version of the Wave Principle.

to be continued…

The author posts regular updates of his latest market analysis on his web-site You can start learning today how to predict the next market move with a best selling video course taught by the author.

Trading is risky. Read this important Disclaimer


Trading stocks, options, or futures carries a high level of risk, and may not be suitable for all investors. Before deciding to trade, you should carefully consider your objectives, financial situation, needs and level of experience. CastAway Trader LLC provides general overview of trading methods that does not take into account your objectives, financial situation or needs. The content of this website must not be construed as personal advice. The possibility exists that you could sustain a loss in excess of your deposited funds and therefore, you should not speculate with capital that you cannot afford to lose. You should be aware of all the risks associated with trading. You should seek advice from an independent financial advisor. Past performance is not necessarily indicative of future success.