SpaceX Sold $80 Billion in Compute to Anthropic and Google Because xAI's Own Teams Had Trouble Using Colossus. The World's Largest AI Cluster Is Primarily Running Competitors' Models.

SpaceX's IPO offer price was $135 per share. The $150 figure that appeared in several early stories was the opening trade on June 12, not the price at which shares were sold to institutions. At $135, 555.6 million shares grossed $75 billion — the largest IPO in history by a factor of approximately 2.5 over Saudi Aramco's record. The Day 1 close of $160.95 represented a 19% gain from offer price, not from the opening trade. The market cap peaked not at $2.25 trillion — the approximate Day 1 intraday high — but at approximately $2.95 trillion on June 16, four days into public trading. The trillionaire designation for Musk, confirmed across Bloomberg, Forbes, and CNBC, occurred on June 12; by June 18, Bloomberg estimated his net worth at $1.23 trillion.

The Cursor acquisition was announced June 16 — four days after IPO first trading, not six. The more significant timing is April 21, 2026: SpaceX secured the option to acquire Cursor two months before the IPO priced. The right to acquire a $60 billion company for SPCX stock was locked in while the offering was still being prepared. Whether this option was prominently disclosed in the S-1 or relegated to risk factors and Subsequent Events is a material disclosure question; investors who bought $135 shares on June 12 received stock that SpaceX had committed to issuing for a $60 billion acquisition within the week.

The most significant unreported story about Colossus is Bloomberg's reporting that xAI's own teams "had trouble using" the infrastructure they built. The specific issue was network latency in the H100/H200 configuration at Colossus 1. The latency characteristics of that cluster made it unsuitable for xAI's own large-scale model training workloads — the primary purpose for which $18 billion-plus in GPU infrastructure was constructed and financed.

The consequence: SpaceX sold $80 billion-plus in committed compute capacity to Anthropic and Google — xAI's direct competitors — because xAI's own team couldn't effectively run on what they had built. Anthropic is paying $1.25 billion per month for 220,000-plus GPUs at Colossus 1 at 300 MW, through May 2029 — $45 billion in committed revenue over the contract term. Google is paying $920 million per month for approximately 110,000 GPUs through June 2029 — roughly $30 billion. Reflection AI is paying $150 million per month starting July 2026 on Colossus 2. Total committed external compute revenue through 2029 exceeds $80 billion. For comparison, Anthropic's committed compute spend with SpaceX alone ($45 billion) exceeds the entire gross proceeds of the Saudi Aramco IPO.

The framing in most IPO coverage was that SpaceX was "monetizing excess capacity." Bloomberg's reporting inverts that: it's not excess. xAI needed its own GPUs for training and couldn't use them at scale for that purpose. The external revenue is a workaround. Whether Colossus 2 — built on NVIDIA's GB200/NVL72 architecture with superior interconnect — resolves the latency issues that plagued Colossus 1 has not been publicly confirmed by xAI.

The SpaceX-Colossus relationship itself requires a clarification that most coverage omitted. SpaceX did not "host" Colossus before February 2, 2026. xAI operated Colossus independently until that date, when the xAI-SpaceX merger closed and xAI became a SpaceX subsidiary. The hosting language is accurate only post-acquisition. Pre-February 2026, SpaceX had no operational role in Colossus.

The IPO's governance structure is the second underreported story. Musk holds approximately 42% of SpaceX equity but controls 83-85% of voting power through Class B shares carrying 10 votes each. SpaceX claimed the "controlled company" exemption under Nasdaq rules, eliminating the requirement for an independent board majority. CEO removal requires Musk's own consent. The xAI acquisition — in which SpaceX paid $250 billion to acquire a company Musk controlled — was completed without a disclosed independent board committee review.

Within that governance structure: Antonio Gracias is simultaneously a SpaceX board director and the managing partner of Valor Equity Partners. Valor holds three GPU equipment lease agreements with xAI subsidiary CTC totaling $20.2 billion, all guaranteed by SpaceX. Valor collected $885 million from these leases in 2025 and $857 million in January-February 2026 alone. PwC, as SpaceX's auditor, classified these arrangements as "failed sale-leasebacks" and reclassified approximately $9 billion to SpaceX's balance sheet as related-party debt. The S-1 discloses the Valor relationship in the related-party section but omits the standard language used elsewhere in the filing for arm's-length transactions — the certification that terms are "no less favorable than what would be available from an unaffiliated third party." That certification is present for other related-party disclosures and absent for Valor. No independent committee review of the Valor leases has been disclosed.

SpaceX's financial position at IPO was: FY2025 net income negative $4.94 billion post-xAI consolidation, $20.7 billion in capital expenditure, adjusted EBITDA of $6.584 billion. Only Starlink was profitable ($4.4 billion operating income FY2025). The company raised $75 billion at a $2.1 trillion Day 1 market cap while losing approximately $5 billion per year on a GAAP basis.

Morningstar's Nicholas Owens published a fair value estimate of $780 billion — a 57% discount to the Day 1 market cap. His analysis notes that at IPO, retail investors acquired shares with approximately 17% of voting rights against Musk's approximately 83-85%. Owens assigns 7% probability to a positive orbital data center scenario and 43% probability to a scenario in which that option is "shelved," destroying more than $81 billion in value relative to his base case.

The structural conflict at SpaceX post-IPO is worth naming precisely: SpaceX is simultaneously the operator of AI infrastructure that hosts Anthropic and Google models, the owner of Cursor (whose AI coding tools compete with products backed by Anthropic and OpenAI), a provider of contracted compute to Anthropic and Google whose revenue depends on their AI business growing, and the parent of xAI, whose Grok models compete directly with Anthropic's Claude and Google's Gemini. SpaceX benefits financially from Anthropic's AI capacity growth while xAI competes against Anthropic for the same enterprise customers. That conflict lives on a single balance sheet and reports to a single CEO with 83% of the votes.