SpaceX’s Mega-IPO Puts a Price Tag on the Fear of Missing Out

Elon Musk has turned science fiction into reality for the better part of two decades, making believers rich and earning the benefit of the doubt from many on Wall Street. Away from rockets and electric cars, his companies are bending reality on another plane – convincing analysts to stretch their traditional valuation tools, and assign multiples based on what one academic calls “optionalities.”