SPX's Elliott one of a kind deep stuff Pro guys. Not mine :-)

Triangle Rules:

CT = Contracting Triangle, ET = Expanding Triangle

A Triangle is a common 5 Wave pattern labeled A-B-C-D-E that moves counter-trend and is corrective in nature. Triangles move within two channel lines drawn from Waves A to C, and from Waves B to D. A Triangle is either Contracting or Expanding depending on whether the channel lines are converging or expanding. Expanding Triangles are rare.
Wave A of a CT is always either a Zigzag based pattern or a Flat. Wave A of an ET can only be a Zigzag based pattern.
Within Wave A of a CT, Wave B must be less than 105% of Wave A's price length. The same rule applies for Waves C and D of the CT.
Wave B must be a Zigzag based pattern.
Wave C of a CT can be any corrective pattern except a Triangle. Wave C of an ET must be a Zigzag based pattern.
Wave B of a CT must retrace Wave A by 50%.
For a CT, Wave C must be less than Wave B by price and Wave C must be greater than or equal to 50% of Wave B by price.
For an ET, Wave B must be less than Wave C by price and Wave B must be greater or equal to 50% of Wave C by price.
Wave D of a CT can be any corrective pattern except a Triangle. Wave D of an ET must be a Zigzag based pattern.
Wave B, C and D must not move more than 10% beyond the A-C & B-D channel lines (based on the length of Wave C).
In an ET, Wave C must be less than Wave D by price and Wave C must be more than 50% of Wave D by price.
In an ET, Wave A must move within the A-C channel or pass through it by no more than 10% of the length of Wave B by price.
In an CT, Wave D must be less than Wave C by price and Wave D must be greater than or equal to 50% of Wave C by price.
The intersection of the channel lines must occur beyond the end of a CT, and before the beginning of an ET.
The channel lines must either converge or diverge. They cannot be parallel.
Wave D of a CT must not end such that when retraced 25% by E, E will not reach the price territory of A.
Only one channel line in a CT may be horizontal. Neither channel line of an ET can be horizontal.
The maximum time for Wave D is 4 times Wave C.
Wave E of a CT can either be a CT or a Zigzag family pattern. For an ET, Wave E must be a Zigzag based pattern.
In an ET, Wave E must be greater than Wave D by price and Wave D must be greater or equal to 50% of Wave E by price.
In an ET, either Wave A or B will be the shortest Wave in the pattern.
In a CT, Wave E will be less than Wave D by price and Wave E will be greater than or equal to 25% of Wave D by price.
In a CT, either Wave A or B will be the longest Wave in the pattern.
In a CT, the maximum time for Wave E is 4 times Wave C.
Wave E must end in the price territory of A.
Wave E must not pass through the B-D line, or if it does, by no more than 10% of the length of Wave D.
The maximum number of pattern lengths into the future that the channel lines intersect is 6.



Triangle Guidelines:
Wave A is usually a zigzag family pattern.
Wave B is usually a zigzag family pattern.
Wave C is often a zigzag family pattern.
Wave C usually takes more time than any other Wave in the pattern.
Wave D is usually a zigzag family pattern.
Waves B, C and D rarely move outside the B-D line.
Waves A, B, C and E rarely move outside the A-C line.
Wave E is usually a zigzag family pattern or the same type of Triangle as the larger pattern.
Usually at least two Waves travelling in the same direction will relate by about 61.8%.
It is common for two or more adjacent Waves will be related by 61.8%.
In a CT, Wave E normally retraces Wave D by about 70%.

Comment:

One way to look at it out of many.

Comment:

This is working like a clock one of my favorite counts out there.