概念

The tendency for U.S. stock markets to follow a 4-year cycle aligned with the U.S. presidential election cycle. Years 3–4 of the cycle tend to be strongest.

The tendency for stock markets to show similar price behavior within each decade — weak in years ending in 2, strong in years ending in 5 and 8.

A commodity price cycle identified by Samuel Benner in the 19th century. Shows recurring patterns of highs and lows at irregular but predictable intervals.

Elliott Wave Theory is an extension and refinement of Dow Theory. Dow Theory's primary trend, secondary reactions, and minor trends correspond to Elliott's degrees of waves.

The concept of wave hierarchy in Elliott Wave Theory — classifying waves by their relative size. From smallest to largest: Sub-Minuette, Minuette, Minute, Minor, Intermediate, Primary, Cycle, Supercyc

Extension-like phenomena also appear in corrective waves: triangles can develop 9 sub-waves, and double/triple zigzags extend the price correction.

The 3rd sub-wave within wave 3 of an impulse. Tends to be the strongest and largest price movement — the most sought-after trading opportunity for Elliotticians.

A long economic cycle of approximately 50–60 years, identified by Russian economist Nikolai Kondratiev. Corresponds to the Supercycle degree in Elliott Wave Theory.

A diagonal that appears as wave 1 of an impulse or wave A of a corrective pattern. Signals the start of a new trend. The 3-3-3-3-3 sub-wave structure is most common.

A diagonal is a motive wave with a wedge shape (converging or diverging). Unlike a standard impulse, diagonals allow overlap between waves 1 and 4. They appear as wave 1 (leading) or wave 5/C (ending)