SpaceX is going public, and its shares are expected to go to the moon. Will it stay up there? Should you go along for the ride?

The company says it’s bound only by the “laws of physics.” At its target price, those may include gravity.

Splashy initial public offerings often skyrocket early on, only to return to earth with a thud, Wall Street analysts say.

Musk owns 85 percent of the controlling shares, so “public” is relative.