SpaceX IPO values rocket company at $1.75 trillion—higher than physics allows

SpaceX went public on June 12 at $135 per share on the Nasdaq under ticker SPCX, pricing the company at $1.75 trillion. This is the largest IPO in United States history. It is also a masterclass in what happens when institutional capital, retail enthusiasm, and Elon Musk's brand equity collide with basic arithmetic.

The numbers are not ambiguous. SpaceX generated $18.7 billion in revenue during 2025 and lost $4.9 billion doing it. The company burned through minus $25 billion in free cash flow in the first half of 2026. At $1.75 trillion, this values SpaceX at roughly 90 times trailing sales—the highest price-to-sales ratio in IPO history. For context, Microsoft trades at 12 times sales. Nvidia, the darling of the AI era, trades at 28 times sales. Tesla, which at least generates positive free cash flow, trades at 8 times sales.

To justify a $1.75 trillion valuation, SpaceX would need to reach $1.1 trillion in annual revenue by 2035. That requires revenue to grow 50 percent per year, every year, for a decade. The entire global space industry generated roughly $440 billion in 2024. SpaceX would need to capture the entire existing market, then quadruple it while simultaneously dealing with competition from Blue Origin, Chinese state actors, and whatever venture-backed startup decides that satellite internet at half the cost is a viable business model.

Aswath Damodaran, who teaches valuation at NYU's Stern School of Business, says SpaceX's equity is worth roughly $1.3 trillion. That's half a trillion dollars of optimism that Damodaran cannot justify. Morningstar analyst Nicolas Owens pegs fair value at $780 billion—less than half what the company is asking. These are not fringe skeptics. These are professionals whose job is pricing risk and future cash flows. They are looking at the same data and concluding that the market is paying a 100 percent to 125 percent premium to fair value.

The stock itself has performed—closing at $171.92 on October 6, 2026, a 27 percent gain from the IPO price. Some research outfits have pegged fair value at $0.46 per share, applying a 30 percent discount rate. Others, apparently, bought at $135 and held anyway. This is what the greater fool theory looks like in practice: the assumption that someone will pay more than you did, regardless of the fundamentals.

What makes this particularly remarkable is that SpaceX is not a pre-revenue software company. It is not a clinical-stage biotech firm where the optionality of a pipeline justifies astronomical valuations. It is a capital-intensive manufacturing and launch business with real costs, real competition, and real physics. Rockets cost money to build and launch. Starship development has consumed roughly $5 billion and remains in test phase. Starlink, the satellite internet subsidiary, is profitable but faces brutal unit economics and a saturated addressable market in developed nations.

The IPO prospectus laid all of this bare. Investors read it anyway and bought $75 billion worth of stock at a valuation that assumes perfection. Not success. Perfection. Fifty percent annual growth for ten years. No competition. No cost overruns. No geopolitical disruption. No recession. No technological setback. The odds of all of those boxes staying checked for a decade are approximately the odds of launching a Falcon 9 successfully—which, to be clear, is roughly 95 percent. The odds of launching it successfully 500 times in a row while also growing revenue by half a trillion dollars and maintaining margins? That requires a different probability calculation.

SpaceX will almost certainly continue to innovate and generate revenue. Starship will likely fly. Starlink will likely grow. The company may even achieve profitability at scale. But the market is not pricing in success. It is pricing in vindication of a valuation that no serious analyst believes is justified by current or near-term fundamentals. That is not investing. That is faith-based capital allocation. And faith, unlike revenue projections, is not tax-deductible.