Elliott Wave Corrective Patterns: Zigzag, Flat, Triangle and Combination
Lesson 3 of 8 · Intermediate
Why are corrective waves harder?
In the direction of the trend, the market usually moves with purpose and momentum, but during a correction buying and selling forces are closer to balance and price takes more varied shapes. That is why, until it is complete, a correction can resemble several different patterns. The general rule is that a correction is never a five-wave motive structure, and there are four main families: zigzag, flat, triangle and combination. The zigzag is sharp; flats, triangles and combinations are usually sideways and consume more "time" than "price".
The zigzag (5-3-5) and the double zigzag
The zigzag is the most common sharp correction: wave A is a five-wave move, wave B a three-wave move and wave C again a five-wave move. In a downward zigzag within a gold uptrend, B usually retraces part of A (often about 38.2% to 78.6%) and does not reach the start of A. Wave C is in many cases roughly equal to A and moves beyond the end of A.
Educational example: suppose after reaching 4,150, XAUUSD falls to 4,110 in wave A (40 dollars), rebounds to 4,132 in wave B (about 55% of A), and wave C falls about 40 dollars from 4,132 to around 4,092. If B rises above 4,150, we no longer have a classic zigzag.
Sometimes one zigzag is not enough to complete the correction and two zigzags are joined by a connecting wave. This pattern is called a double zigzag and is labelled W-X-Y; the X wave is itself a three-wave correction. A triple zigzag (W-X-Y-X-Z) also exists but is rare.
Flats (3-3-5): regular, expanded and running
In a flat, wave A has three waves and lacks the energy to build a five-wave move. Wave B is also three waves and, unlike in a zigzag, retraces nearly all of A or even more; in the classical approach B is usually said to retrace at least about 90% of A. Wave C has five waves.
| Flat type | Wave B | Wave C | Note |
| Regular | Roughly to the start of A | Roughly to the end of A | Looks like a rectangle |
| Expanded | Beyond the start of A | Beyond the end of A | The most common type; C is often about 1.618 times A |
| Running | Beyond the start of A | Fails to reach the end of A | Rare; a sign of a very strong trend |
The expanded flat in gold is a headache for impatient traders: wave B prints a new high and many assume the trend is continuing, but then a sharp wave C comes down and breaks the low of A as well. In an educational example, if A runs from 4,150 down to 4,120 and B rises to 4,158, wave C at 1.618 times A (about 48.5 dollars) could fall to around 4,109.5.
Triangles (3-3-3-3-3)
A triangle is built from five parts, A to E, each a three-wave move, oscillating between two converging or diverging lines. The common types are the contracting triangle (converging lines; the most common), the barrier triangle (one line roughly horizontal) and the expanding triangle (diverging lines; rare).
The position of a triangle matters: it usually appears in wave 4, wave B or the last part of a combination (Y or Z), and almost never in the position of wave 2. A triangle means the market "catches its breath" before the final move in the direction of the larger trend. After a contracting triangle there is usually a quick thrust whose size is often close to the width of the widest part of the triangle.
In gold, triangles often form ahead of major data releases, and low-liquidity hours also produce triangle-like shapes. So before labelling, make sure each of the five parts really is a three-wave move and that wave E has not broken the line without confirmation.
Combinations: double and triple threes
When the market needs more time to correct, it joins several simple corrections with connecting X waves. A double three is labelled W-X-Y and a triple three W-X-Y-X-Z. A few important guidelines:
- Combinations are usually sideways, unlike the double zigzag, which is directional.
- If a triangle appears in a combination, it is usually the last part.
- In the classical approach, a combination usually contains no more than one zigzag and no more than one triangle.
- Wave X can be any corrective pattern, but is most often a zigzag.
Recognition in practice: which correction is forming?
The most important decision points are the structure of wave A and the depth of wave B. If A is five waves, a zigzag is more likely; if A is three waves, a flat, triangle or combination. If B retraces most of A, a flat becomes more likely. Since you cannot be sure in real time, write an invalidation level for each scenario; for example: "If B rises above the start of A, the zigzag is dropped and an expanded flat or trend continuation is examined."
In gold, corrections become longer and more complex during the wait for economic data and around long holidays. Waiting for the five-wave C to complete, instead of guessing the end of the correction in the middle of it, is one of the simplest ways to reduce counting errors.
Common mistakes
- Labelling any tangled move a 'triangle' without checking that its parts are three-wave moves.
- Declaring the correction over at the end of A or B while C has not yet formed.
- Mistaking the new high of wave B in an expanded flat for a continuation of the trend.
- Placing a triangle in the position of wave 2.
What does volume say here?
Corrections are usually quieter in volume, and that helps to identify them. In an expanded flat, the new high of wave B often comes with weak volume or absorption of buy orders on the footprint chart; price has risen, but aggressive traders are not behind it. This supports the "expanded B" count against "trend continuation".
In triangles, a gradual decline in volume from A to E is common, and a breakout after E is more credible if it comes with rising volume and aligned delta. At the end of a zigzag's wave C, look for signs of exhausted pressure: negative delta that no longer pushes price lower, or an old high-volume area where price stalls. If C passes the expected level on heavy volume with no absorption at all, the correction may be deeper or the count wrong. (On retail platforms XAUUSD volume is tick volume; real volume comes from GC futures, converted with the basis.)
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Frequently asked questions
What is the difference between a double zigzag and a double three?
Both are labelled W-X-Y, but in a double zigzag both parts are zigzags and the pattern is sharp and directional; a double three is usually sideways and built from different corrections such as a flat and a triangle.
Does a triangle always come before the last move of a trend?
A triangle usually sits before the final move in the direction of the larger trend, for example in wave 4 or B, but 'usually' means not always; check the larger-degree structure as well.
How do I know whether wave A is three or five waves?
Go to a smaller timeframe and test the impulse rules on it. If five waves cannot be seen without breaking a rule, A is probably a three-wave move and a flat or triangle is more likely.
Education only, not a recommendation to buy or sell; we never give signals. Price examples are illustrative. Test any method on a demo account first, with strict risk management.