Elon Musk's SpaceX made its Wall Street debut on June 12 in the largest initial public offering on record, raising $75 billion and valuing the company at about $1.8 trillion. The company began trading on the Nasdaq under the ticker symbol "SPCX," marking a major milestone for the rocket, satellite and AI-linked conglomerate. The listing also pushed Musk's fortune past the trillion-dollar mark, making him the world's first trillionaire after SpaceX shares went public.