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Elliott Wave: the three standard-impulse rules
Before drawing an exciting wave 3 target, make sure the proposed count follows its own rules.
Check the three rules and distinguish a standard impulse from a diagonal.
A standard impulse has five waves, with 1,3,5 moving in its direction and 2,4 correcting. These are nested movements, not simply five candles.
Wave 2 must not fully retrace wave 1. Wave 3 cannot be the shortest of 1,3,5; it does not always have to be the longest.
In a standard impulse, wave 4 must not overlap wave 1's price territory. Diagonals are a separate motive structure that permits overlap; they are not a universal excuse for a broken count.
A valid-looking count only passes structural constraints. It does not establish a forecast, a profitable entry or the identity of market participants.
Let’s work through it
- Mark the five endpoints
- Check all three constraints
- Write the rejection reason
Let’s use numbers · hypothetical example
Bullish path 100→110→105→125→115→130 has motive lengths 10,20,15. Wave 2 stays above 100, wave 4 above 110, and wave 3 is not shortest. It passes these checks, without guaranteeing another rise.
Easy mistakes to watch for
- Wave 3 must always be longest
- Every five candles form a wave
- Overlap is always allowed
Keep in mind
Do not rename every invalid impulse a diagonal. The proposed diagonal must satisfy its own structure and location requirements.
Your turn
Check three made-up counts against each rule. Include one with wave 3 shorter than both 1 and 5.
A quick check before we move on
Can wave 3 be shorter than wave 5 in a standard impulse?
- Yes, if wave 3 is not the shortest of 1,3,5
- Only if wave 2 exceeds the origin
- Never
Check answer
Yes, if wave 3 is not the shortest of 1,3,5 The rule forbids wave 3 being the shortest, not merely being shorter than wave 5.
Sources and further reading
- www.elliottwave.com/waveopedia/motive-waves/
- www.elliottwave.com/waveopedia/impulse/
- www.elliottwave.com/waveopedia/elliott-wave-pattern-diagonals/
- www.elliottwave.com/wave-riffs/questions-we-get-questions/
Content reviewed: 29 October 2026
Educational material with hypothetical examples. Trading can cause substantial losses. A course, pattern, stop order or past result cannot guarantee a profit or limit every loss. Practise in simulation and check current rules and product terms in your jurisdiction.
