Let's make some common sense out of this

$AMC Entertainment (AMC.US)$
It's actually very simple, retail investors like us mostly buy for the Moass or squeeze or whatever their motive is which no other companies has the retail investors owning a major of its shares.
Day traders buy for it's momentum but they don't cause prices to drop so much as they need it to go up to profit.
Hedge funds shorted it beyond hope with naked shortings and there is no way out for them but to cover. Even if they cover, there is not enough shares for them. That's why it's called naked shorting. Even if smaller institutes or retail investors are shorting it, where is there so much short shares to borrow? Not forgetting that the pool is being returned but the price is going down without being borrowed
So, common sense will tell us, who has the most motive for such price movement? Up to you to decide. You can throw whatever TA to it and it will never make any sense!