Bitcoin is the most special goods of financial market which I have ever known. So, it's too difficult to say anything about phases or to use technical analysis/ fundamental analysis to trade effectively. Unlike trading gold, oil, rubber, stock etc...,trading btc is more difficult than theses because of many unexplained reasons.
Though your emphasis is quite late, I highly appreciate because I sold all of btc and tokens 4 months ago.
I do NOT think that btc is now in accumulation phase because if it is as you thought, it would have been fluctuated in narrow prices (+-5-10%)for months. I think, btc is finding its new bottoms in the time to come and God knows which bottom is the last one.