Sometimes a fifth wave could be weak and end without reaching the end of the third wave. A situation like this calls a 'truncation', which we could face at the fifth wave of an impulse or ending diagonal. It's pretty rare if even possible to have a truncation in a position of the fifth wave of a leading diagonal. Usually, a truncation happens after a really strong third wave. Most often in Stocks we can see a Truncation in the 5th wave.
What a Magnificent Rally it was from 124.90 to 33480 odd levels.