I bought in on FFIE on Monday with an amount I'm willing to lose completely. Basically, it shot up from around $.05 per share to $3+ at one point on Friday. It's been hanging around $1-2 since.
The subreddit and Discord groups are saying that if it continues to close at over $1 per share for another 6 days, it will put pressure on hedge funds who have purchased shorts, and could have another squeeze. Because if it doesn't continue to close above $1, it can be delisted.
Basically an impulse decision on my part, but I was on the ground floor before GME took off and didn't pull the trigger, so I've got FOMO now. I figure it'd be cool if this one takes off again, but, if not, that's okay, too.