(FILES) Elon Musk looks on as US President Donald Trump speaks at the US-Saudi Investment Forum at the John F. Kennedy Center for the Performing Arts in Washington, DC on November 19, 2025. Elon Musk's SpaceX began its first day as a public company on Wall Street on June 12, 2026, after the biggest initial public offering in history, with the polarizing entrepreneur promising he will take humanity to Mars. The blockbuster operation, which raised more than $75 billion, is expected to make Musk the world's first trillionaire and kick off a series of major IPOs by AI companies in the coming months. (Photo by Brendan SMIALOWSKI / AFP via Getty Images)