Based on what? Based on the fact that FB IPO'd at 38 so 14 suddenly seems cheap? Are you simply looking at price or other things also, like outstanding stocks, revenue, future potential etc. or just a single number "14".

What if FB has twice the number of outstanding stocks, so todays 38 would have been effectively 19, would you still have done what you're saying.

This is the fundamental problem with a lot of folks, they just look at the price, and why stocks normally go up when split, it "looks" cheaper but nothing has changed.

That's pretty ballsy, I'd suggest you keep a little reserve, just in case. Staggered buy-in is a good way to hedge your bets if you are going to buy only one company.

If fb was down to 14, many things about the company fundamentals would be different. There'd be a reason for it to have dropped by more than 50%.

Instea of going all in and buying the stock, consider options.

I think that the GP's statement was made ceteris paribus.

Naturally, if there was some new information available about the company fundamentals that caused FB stock to drop to $14, it would only be a good buy if you could determine that the market overreacted.

I admit I needed to google your Latin. For anyone else, ceteris paribus: "all other things being equal"