It’s a Triangle. Triangle often occur as conclusive mark of a long time argument which could form different pattern but certainly create an end to it, Triangle correction pattern proves often the end of price argument or consolidation. Here in wave Y the ‘Triangle’ is a SYMMETRICAL where the bottom arising while top descending to meet at a point "Apex"; in a regular triangle the wave ‘d’ can most likely overthrow or under throw depending on what the the price direction is but here in this case overthrow the trend line connecting the higher lows, the result of this movement is to potentially under throw in this scenario (wave e breaking the trend line connecting wave a and c).
Which after then the BULLS!