It's honestly hard to say. Obviously the public attitute is: It's not too late. Get in before friday. There are several reasons the cours could spike even more. There are still 120% short positions, that will have to close when the course stays that high. One fund had to be bailed out for 400mio and closing their options made the course jump almost 50%. Plus, the mainstream is pretty slow. Many people will hear about GME for the first time today.

Personally, i would suggest to try and buy a dip, if you have the time to monitor it. Since a lot of options run out on friday, I would hold until monday, maybe even later. Tesla still hasn't corrected yet.

But please, only use money you would take to Vegas and have already written off.