SPCX closed at $160.95 on Friday, a 19% pop from its $135 offer price and a clean stamp on the largest IPO ever conducted. SpaceX raised $75 billion at a $1.77 trillion valuation, nearly triple Saudi Aramco’s 2019 record of $26 billion, and ended the day worth well over $2 trillion, slotting in as the sixth-largest publicly traded U.S. company behind Amazon at $2.54 trillion. Roughly an hour before the opening bell, the company launched a rocket from Florida. The choreography wasn’t subtle.

Elon Musk’s economics tell the real story. Per the S-1, he holds about 42% of SpaceX equity and roughly 82% of voting control through Class B stock, which on a fully diluted basis around 13.076 billion shares mints the world’s first trillionaire on paper. He retains supermajority control of a public company while cashing into the deepest liquidity pool on earth. There’s no modern precedent for that combination at this scale.

The order book was its own statement. Goldman Sachs led a 21-bank syndicate, more than 555 million shares were sold, and roughly 30% of the float went to retail through Robinhood, Fidelity, and Charles Schwab, versus the 5–10% typical of mega-deals. By shortly after 2 p.m. ET, more than 360 million shares had changed hands, ten times Cerebras’s entire first-day volume. SPCX opened at $150, ran to an intraday high of $176.52, and settled up 19.34%.

The fundamentals are louder than the pop. SpaceX booked $18.7 billion in revenue last year, lost $8.7 billion between the start of 2025 and March 31, 2026, and has burned a cumulative $41.3 billion since 2002. The pitch deck answers with a $28.5 trillion total addressable market, which is less a number than a worldview.

Wall Street read the day as a permission slip. Robert Greifeld, the former Nasdaq chief, framed the listing “on the aspiration of what’s possible with human spirit going forward in time” and said he’d “definitely bet” OpenAI and Anthropic follow this year. Analyst Dan Ives called it an “important moment” for the AI cycle. The dissent came from Jay Ritter, the University of Florida IPO researcher, who called the first-day return “disappointing relative to what betting markets had been predicting.”

That gap, between the largest IPO in history and a print that betting markets shrugged at, is the structural tell. The window is open. What walks through it now sets the terms for the rest of the cycle.

Sources