SpaceX files S-1 for IPO, targeting largest-ever US listing at $1.75T valuation

SpaceX has filed its S-1 registration for an initial public offering, revealing plans for what would be the largest US listing in history at a reported $1.75 trillion valuation. The 36-page filing outlines a $28 trillion total addressable market and compensation tied to Mars colonization milestones. Elon Musk's xAI company is separately building Grok 4.3.