This is a low time frame structure and may not be in the same direction as the larger trend. What fits well here is the 5 wave impulse with wave 5 being the extended wave. Corrections from a wave 5 extension normally end in wave 2 of the impulse which this has.
The correction type fits a expanded flat ratio. Wave b is a 1.236 retracement of wave a. Then a 5 wave structure down in wave c ending between a 1. of wave a and a 1. of wave b.