The Times Square crystal ball is dropped for SpaceX's initial public offering (IPO) in New York, on June 12, 2026. Shares in Elon Musk's SpaceX jumped as much as 30 percent on their trading debut after the biggest IPO in history, making the polarizing entrepreneur the world's first trillionaire as he vowed to take humanity to Mars. (Photo by TIMOTHY A. CLARY / AFP via Getty Images)