Elliott discovered that these market cycles resulted from investors' reactions to outside influences, or predominant psychology of the masses at the time. He found that the upward and downward swings of the mass psychology always showed up in the same repetitive patterns, which were then divided further into patterns he termed "waves".
Elliott's theory is somewhat based on the Dow theory in that stock prices move in waves. Because of the "fractal" nature of markets, however, Elliott was able to break down and analyze them in much greater detail. Fractals are mathematical structures, which on an ever-smaller scale infinitely repeat themselves. Elliott discovered stock-trading patterns were structured in the same way.
Market Predictions Based on Wave Patterns
Elliott made detailed stock market predictions based on unique characteristics he discovered in the wave patterns. An impulsive wave, which goes with the main trend, always shows five waves in its pattern. On a smaller scale, within each of the impulsive waves, five waves can again be found. In this smaller pattern, the same pattern repeats itself ad infinitum. These ever-smaller patterns are labeled as different wave degrees in the Elliott Wave Principle. Only much later were fractals recognized by scientists.
In the financial markets we know that "every action creates an equal and opposite reaction" as a price movement up or down must be followed by a contrary movement. Price action is divided into trends and corrections or sideways movements. Trends show the main direction of prices while corrections move against the trend. Elliott labeled these "impulsive" and "corrective" waves.
The Elliott Wave Theory is interpreted as follows:
- Every action is followed by a reaction.
- Five waves move in the direction of the main trend followed by three corrective waves (a 5-3 move).
- A 5-3 move completes a cycle.
- This 5-3 move then becomes two subdivisions of the next higher 5-3 wave.
- The underlying 5-3 pattern remains constant, though the time span of each may vary.
Let's have a look at the following chart made up of eight waves (five up and three down) labeled 1, 2, 3, 4, 5, A, B and C.
You can see that the three waves in the direction of the trend are impulses, so these waves also have five waves within them. The waves against the trend are corrections and are composed of three waves.
Theory Gained Popularity in the 1970s
In the 1970s, this wave principle gained popularity through the work of Frost and Prechter. They published a legendary book on the Elliott Wave entitled "The Elliott Wave Principle – The Key to Stock Market Profits". In this book, the authors predicted the bull market of the 1970s, and Robert Prechter called the crash of 1987. (For related reading, see Digging Deeper Into Bull And Bear Markets and The Greatest Market Crashes.)
The corrective wave formation normally has three distinct price movements - two in the direction of the main correction (A and C) and one against it (B). Waves 2 and 4 in the above picture are corrections. These waves have the following structure:
Note that waves A and C move in the direction of the shorter-term trend, and therefore are impulsive and composed of five waves, which are shown in the picture above.
An impulse-wave formation, followed by a corrective wave, form an Elliott wave degree consisting of trends and countertrends. Although the patterns pictured above are bullish, the same applies for bear markets where the main trend is down.
Series of Wave Categories
The Elliott Wave Theory assigns a series of categories to the waves from largest to smallest. They are:
- Grand Supercycle
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