SpaceX stock will be available to regular investors. Here’s what to know before clicking on ‘buy’

When SpaceX makes its debut on the U.S. stock market , it wants smaller-pocketed, mom-and-pop investors to play a big role in what may be the biggest IPO ever . Elon Musk’s rocket company , formally known as Space Exploration Technologies Corp., is steering some of its initial public offering of stock directly to what are called “retail” investors.