Elon Musk became the first individual to hold a $1 trillion net worth on Friday when SpaceX completed its public offering at a $350 billion enterprise valuation, the largest flotation in capital markets history. The offering priced 1.4 billion shares at $250 apiece, with Musk retaining a 41% stake post-dilution. By market close the stock touched $257, adding $9.8 billion to his paper wealth in six and a half hours.
The IPO follows SpaceX's $250 billion acquisition of xAI in March, a related-party transaction that consolidated Musk's artificial intelligence and satellite infrastructure under a single publicly reportable entity. The combined business now operates 12,000 Starlink satellites, holds $87 billion in Pentagon and NASA contracts through 2034, and runs the third-largest AI compute cluster globally at 620,000 H100-equivalent GPUs. First-quarter revenue reached $19.3 billion with EBITDA margins at 38%, ahead of underwriter models that assumed 34%.
By Thursday's close nine sessions later, shares had fallen to $135.40, just above the $135 threshold that defines a broken IPO in syndicate parlance. The 46% drawdown from the day-one peak erased $93 billion in market capitalization, most of it from the free float rather than Musk's locked-up position. The selloff began when the Pentagon disclosed in a routine filing that its $4.7 billion AI computing contract with SpaceX contained a 90-day termination clause tied to unspecified security reviews, a standard provision that spooked momentum accounts unaccustomed to defense procurement mechanics.
What matters is the asymmetry in reflexivity. The IPO unlocked $52 billion in primary capital for satellite expansion and another $18 billion in secondary liquidity for early employees and venture holders, but it also introduced quarter-to-quarter earnings volatility that private SpaceX never faced. Analysts now model revenue on contract milestones rather than cash collection, and the xAI segment carries a $31 billion goodwill balance subject to annual impairment tests. The company that could once delay a Starship test by six months without a stock price is now a derivative of launch cadence, Pentagon appropriations cycles, and Nvidia's delivery schedule.
Allocators should watch three vectors over the next 120 days. First, the Pentagon's security review closes by mid-September, and any modification to the termination language will reprice the defense revenue stream by 8-12% in either direction. Second, SpaceX must demonstrate it can maintain 38% EBITDA margins while scaling xAI compute from 620,000 to the 1.2 million GPUs outlined in the S-1, a capex cycle that begins in Q3. Third, the lockup on Musk's 41% stake expires in mid-November, creating a technical overhang whether or not he sells. The first trillionaire now has a cost basis the market can see.
The IPO that made Musk a trillionaire also made him a reporting entity. SpaceX will file its first 10-Q on August 12th.