In my opinion, and only my opinion, the recent surge has to do with short cover coupled with volume alerts to day traders which brought even more volume/buying pressure. Some may hit "short SQUEEZE" territory.
Recently, the SEC made a permanent ban on naked short selling. Shortly thereafter, there was some short covering. As time went by, all naked shorts did not cover. It is my opinion that these brokerages gave warning that they (shorts) will have to cover soon because of the SEC ban and the unavailability of share to be borrowed for shorting. I bet some of these brokerages closed out some of these short positions on their own after unheeded warnings.
This happened on all stocks, especially the Q's which usually have a ton of naked shorts.
Do not be surprised that after the short covering is over that alot of these stocks come back down in value.
Thanks and good luck.