SpaceX IPO Priced Far Above Intrinsic Value Estimate

SpaceX's 277-page IPO prospectus, made public on May 20, 2026, confirms the company's broad growth story but adds important detail on debt, share structure, and the scale of its AI ambitions. After running a post-prospectus valuation, NYU finance professor Aswath Damodaran estimates SpaceX's equity is worth roughly $1.25 to $1.3 trillion. The company is expected to price its shares at $135 each, implying a market value of about $1.8 trillion, which Damodaran considers too rich at current inputs.

The prospectus filled in several gaps. Revenue estimates for the launch and connectivity businesses were close to earlier leaks, but the AI unit came in higher than expected. The company reported an operating loss of $2.57 billion in 2025, wider than a pre-prospectus estimate of $2 billion, and a net loss of roughly $5 billion once nearly $2 billion in interest expenses are included. The biggest driver of those losses is research and development spending, which Damodaran argues should be treated as a capital investment rather than a current expense. Adjusting for that, he estimates earnings before interest, taxes, and R&D at $4 billion.

Three Businesses, Three Very Different Profiles

The prospectus breaks down performance by segment, and the picture varies sharply across SpaceX's three units. The connectivity business, Starlink, is the clear near-term engine, with revenues growing nearly 50 percent in 2025 and subscriber counts doubling from 5 million to 10.3 million between the first quarters of 2025 and 2026. The catch: revenue per subscriber dropped from roughly $99 a month in 2024 to $66 in early 2026. Volume is outpacing pricing, but gross margins improved from 37 percent to 48 percent over the same period, suggesting the unit economics are heading in the right direction.

The space launch business has the strongest gross margins, around 67 percent, reflecting the cost advantage of reusable rocket technology. Its operating losses trace entirely to heavy R&D spending. Once that is capitalised, the business looks healthy. Growth was modest in 2025, just under 8 percent, which Damodaran interprets as a business whose target market will develop more slowly than the AI unit.

The AI business, built around the xAI acquisition, is the most uncertain piece. Gross margins are the lowest of the three and deteriorated further in 2025 under pressure from competing large language models and high delivery costs. The prospectus notes that xAI's Colossus compute centre has been leased to Anthropic for $1.25 billion a month, which will boost near-term revenue. But if xAI moves to compete directly against Anthropic in enterprise AI products, that commercial relationship becomes complicated. Damodaran doubled his target revenue estimate for the AI unit from $80 billion to $160 billion, while cutting his target operating margin from 45 percent to 25 percent, reflecting both larger opportunity and harder economics.

Governance, Debt, and the IPO Mechanics

The prospectus reveals a dual-class share structure: 6.93 billion Class A shares carry one vote each, while 5.6 billion Class B shares carry ten votes each. Elon Musk holds all Class B shares, giving him more than 85 percent of voting control. The public offering will consist of Class A shares only. That structure means shareholders have essentially no ability to constrain management decisions, including the scale and direction of AI investment, regardless of how those bets perform.

On the balance sheet, total debt including leases stands at $22.9 billion. But the company holds $24.7 billion in cash, making net debt negative by about $1.9 billion. Against an enterprise value of around $1.2 trillion, the debt is not a meaningful drag on valuation. The $75 billion in IPO proceeds will add directly to the cash balance, earmarked for infrastructure investment. That cash inflow pushes equity value to roughly $1.3 trillion in Damodaran's model, but it also expands the share count.

Reinvestment is running at a pace that is hard to ignore. In 2025, SpaceX spent nearly $14 billion on capital expenditures and almost $9 billion on R&D, a near doubling from 2024. The AI unit alone accounted for more than $14 billion of that combined figure. An optimistic reading is that the company is serious about competing at scale against Anthropic, Google, and OpenAI. A cautious reading is that tens of billions more in capital spending are coming, and if xAI loses the enterprise AI competition, that spending will have destroyed shareholder value with no corrective mechanism available to outside investors.

The prospectus claims a total addressable market of $28 trillion for SpaceX's businesses, with $26 trillion attributed to AI. Damodaran treats that number as implausible, citing similar pattern with Uber's $5.7 trillion TAM claim at its 2019 IPO and Airbnb's $3.4 trillion figure in 2020. His own working estimate for the AI products and services market is $3 to $4 trillion, still large enough to justify a significant valuation, but far below what the prospectus suggests.

For anyone considering the offering, the decision splits along investor and trader lines. At $1.8 trillion, the stock is priced well above Damodaran's intrinsic value estimate, making it unattractive on fundamentals alone. Traders may still see a near-term price pop, as has happened with high-profile IPOs, but momentum can shift fast. The more durable risk is that SpaceX overreaches in AI, overestimates the market, and continues spending at a pace that public shareholders cannot check, given the voting structure Musk controls.