The company says it’s bound only by the “laws of physics.” At its target price, those may include gravity. SpaceX's stock is expected to start trading Friday in the biggest IPO in history. Miguel J. Rodriguez Carrillo / AFP via Getty Images fileJune 10, 2026, 6:01 AM EDTThe world’s richest person wants to sell you the world’s biggest IPO — and one of the most expensive. SpaceX insiders are certain to reap a huge return from a stock sale expected to rocket Elon Musk into being the first trillionaire, but what about the rest of us?Just a moment.We are getting your experience ready.