SpaceX's record $75 billion IPO locks retail investors into 15 to 30-day hold periods while institutional funds flip shares freely, raising fairness

Everyone can buy SpaceX shares, but not everyone can sell them — yet.

NEW YORK, June 12 : Individual investors eager for a piece of SpaceX's mega IPO on Friday scrutinized their e-mail inboxes and brokerage accounts to see just how big a slice of…