Impulse Diagonal Zigzag Flat Triangle Combination
Rules

- A flat always subdivides into three waves.
- Wave A is never a triangle.
- Wave C is always an impulse or a diagonal triangle.
- Wave B always retraces at least 90 percent of wave A.
Guidelines
- Wave B usually retraces between 100 and 138 percent of wave A.
- Wave C is usually between 100 and 165 percent as long as wave A.
- Wave C usually ends beyond the end of wave A.
Notes

- When wave B is more than 105 percent as long as wave A and wave C ends beyond the end of wave A, the entire formation is called an expanded flat.
- When wave B is more than 100 percent as long as wave A and wave C does not end beyond the end of wave A, the entire formation is called a running flat.
Running Flat