These graphics are the evolution of GME an AMC yesterday. I dont know anything about finance but i see that the spikes and digs happend exactly at the same time.

Can we assume that it mean that the sharing prices of these two evolution were monitored by the sames algorithm and maybe the sames servers? ( i have read lot of times that the hedge funds use IT at the nanosecond for doing their business)

If yes, it mean that the situation is exactly the same for GME and AMC, if you look for Blackberry and Nokia, graphs are different.