While standard impulses prohibit overlap between Wave 4 and Wave 1, diagonal formations represent an exceptional geometric variant characterized by converging or expanding boundary trendlines.

Leading Diagonals (Wave 1 or A)

Leading diagonals occur at the onset of a new trend degree, frequently exhibiting a 5-3-5-3-5 internal sub-wave count that announces a cyclical transition with pronounced compression.

Ending Diagonals (Wave 5 or C)

Ending diagonals occur strictly at terminal exhaustion points. Every sub-wave (1, 2, 3, 4, and 5) subdivides into a 3-wave zigzag (3-3-3-3-3), signaling that underlying motive velocity has dissipated prior to a swift structural reversal.