Elliott Wave Theory¶
OVERVIEW¶
Elliott Wave Theory is a technical analysis framework developed by accountant Ralph Nelson Elliott in the 1930s that holds financial markets advance in repeating fractal patterns of five impulse waves in the direction of the primary trend, followed by three corrective waves against it. The 5-3 sequence repeats across every timeframe — a single one-minute wave is constructed from smaller five-wave sub-structures, and is itself a sub-wave inside a larger weekly or monthly pattern. The framework reduces price action to a count of motive moves and reactions, and uses Fibonacci ratios to project the magnitude of each leg.
WAVE STRUCTURE¶
A complete Elliott cycle contains eight waves across two phases.
| Phase | Waves | Direction |
|---|---|---|
| Impulse | 1, 2, 3, 4, 5 | Odd waves move with the trend; even waves correct it |
| Corrective | A, B, C | Retraces part of the preceding impulse |
Non-Negotiable Rules¶
Three rules govern all valid wave counts. A violation requires re-labeling the entire structure.
| Rule | Condition |
|---|---|
| Wave 2 | Never retraces more than 100% of Wave 1 |
| Wave 3 | Never the shortest of Waves 1, 3, and 5 — most often the longest |
| Wave 4 | Never overlaps the price territory of Wave 1 |
Fibonacci Ratios by Wave¶
| Wave | Typical Ratio |
|---|---|
| Wave 2 retracement | 50–61.8% of Wave 1 |
| Wave 3 extension | 161.8% of Wave 1 measured from the Wave 2 low |
| Wave 4 retracement | 23.6–38.2% of Wave 3 |
| Wave 5 length | Often equals Wave 1 in length |
WORKED EXAMPLE¶
The following example uses SPY from October 2024 through January 2025.
| Wave | Price Action | Measurement |
|---|---|---|
| Wave 1 | $480 → $560 | +$80 |
| Wave 2 | $560 → $510 | −$50 (62% retrace of Wave 1) |
| Wave 3 | $510 → $640 | +$130 (1.625× extension of Wave 1) |
| Wave 4 | $640 → $590 | −$50 (38% retrace of Wave 3; no overlap with Wave 1 range) |
| Wave 5 | $590 → $670 | +$80 (equal to Wave 1) |
The subsequent A-B-C correction then pulled SPY from $670 back to $590 over six weeks before a new impulse began at a higher degree of trend.
Tip
Wave 4 must not overlap the price range of Wave 1. In this example, Wave 1 spanned $480–$560 and Wave 4 bottomed at $590 — the rule holds.
WHEN TRADERS USE IT¶
Elliott Wave is used to identify where price sits within a larger structure and project the magnitude of the next leg.
| Use Case | Strategy |
|---|---|
| Position trading | Enter on Wave 3 — the longest, fastest leg with the strongest momentum confirmation |
| Counter-trend trading | Fade exhausted Wave 5 moves into divergence with RSI or MACD |
| Options trading | Structure debit spreads targeting the projected Wave 3 extension price |
LIMITATIONS AND MISCONCEPTIONS¶
| Limitation | Detail |
|---|---|
| Subjectivity | The same chart admits multiple valid wave counts |
| No timing signal | The theory confirms a wave has completed but does not specify when |
| Retroactive labeling | Practitioners frequently re-label waves after a rule violation forces a new interpretation |
| Backtesting | Mechanical Elliott systems consistently underperform simple trend-following rules |
Note
Most professional users treat Elliott as a structural lens combined with hard tools like Fibonacci retracement levels, Anchored VWAP, and momentum oscillators rather than as a standalone trading system.