SpaceX's IPO filing presents investors with an unprecedented valuation puzzle. At $1.75 trillion, Elon Musk's space venture would become America's seventh-largest company, yet its $19 billion revenue ranks it just 200th—similar to General Mills. The company's finances offer little help for determining worth, leaving analysts to speculate about cash flows from Mars colonization and other speculative ventures.

SpaceX operates three distinct units: Starlink (profitable, majority revenue), a small space division, and an unprofitable AI segment. Analysts will likely break down each unit separately, but growing losses, modest 15% revenue growth, and appraising non-existent activities like asteroid mining make precise valuation nearly impossible. Target estimates for Musk's Tesla already range wildly from $500 billion to $2.2 trillion.

One approach works backward from Musk's potential $7.5 trillion stock bonus, suggesting a current valuation near $1.9 trillion. Alternatively, capturing just 3% of Musk's projected $28.5 trillion total addressable market could justify the valuation. While Musk's vision includes interplanetary travel, nearly 80% of his target market consists of enterprise applications already served by competitors like Anthropic, which already generates double SpaceX's quarterly revenue.