That's the idea, yeah, but I invested heavily in it after that initial crash, and it just keeps dropping. Last I checked, it was down to about $5 per share. I'm 2/3 of the way through the game now, and I still haven't seen it rise.
It's strange how Lester sends you a link to the stock site and says buy low, sell high. And when you follow the link, LFI is really low. Why would Rockstar mislead people into buying LFI when they know it's just going to lose them money.
I bought some before the last mission because I heard it rises shortly after... couple hours of gameplay later and it still isn't rising, in fact right now its even lower than when I bought it at. Kinda sucks because I put in a lot of millions hoping for a huge payout, but now I'll just end up losing money..