SpaceX’s 100x multiple IPO reignites startup valuation debate ahead of AI mega-debuts

For founders and VCs, the SpaceX IPO offers both a beacon and a cautionary tale: astronomical multiples justify sky-high private rounds, but the billion-dollar losses underscore the gamble inherent in capital-intensive moonshots. As retail demand skyrockets—30,000 Aussies applied through one broker alone—the exit landscape for AI startups suddenly looks turbocharged, even if the public markets will eventually demand a path to profitability.

SpaceX's initial public offering over the weekend has rewritten the record books, debuting at a valuation of $2.1 trillion after shares closed 19 percent above the $135 offer price. The company raised $75 billion in fresh capital, an amount that nearly equals the entire $77 billion raised across all U.S. IPOs in the preceding year. The sheer scale of the listing—both in terms of the capital raised and the $1.77 trillion pre-IPO valuation—caps a stunning rise for Elon Musk's rocket, satellite, and AI conglomerate, which was valued at $180 billion less than two years ago. The successful float drew intense retail demand, with Australian broker CommSec alone reporting 30,000 customer applications before it closed its order book, one of eight local brokers offering shares. The offering instantly cements SpaceX as the most valuable public company in history by market cap at debut.

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SpaceX's initial public offering over the weekend has rewritten the record books, debuting at a valuation of $2.1 trillion after shares closed 19 percent above the $135 offer price.

Despite the euphoric reception, the transaction has divided professional investors. The post-IPO valuation represents roughly 100 times the company's revenue, and SpaceX is losing billions of dollars annually. Emanuel Datt, principal of Datt Capital, likened buying the stock to 'buying a lottery ticket,' warning that a business trading at 100 times sales carries extreme risk. AMP chief economist Shane Oliver noted that the $75 billion raised was unprecedented in its market impact, effectively matching the capital that flowed into all other U.S. IPOs last year. Such a massive capital drain could starve smaller, high-growth companies of the funding they need, concentrating risk in a single mega-cap name.

The IPO's success is now being interpreted as a bellwether for the next wave of artificial intelligence mega-listings. Both Anthropic and OpenAI are expected to follow SpaceX to the public markets, with sharemarkets already bracing for the cash calls. The logic is straightforward: if a capital-intensive, unprofitable frontier technology company can command a $2.1 trillion valuation, then the path is cleared for the leading generative AI companies, which arguably sit at the heart of the next technological revolution. Public investors have signaled a voracious appetite for narratives of technological supremacy, even when near-term earnings remain elusive.

Yet the comparison is not without friction. SpaceX benefits from a diversified moat across launch services, Starlink satellite internet, and adjacent AI ventures, all under the halo of a founder viewed as synonymous with technological audacity. Anthropic and OpenAI may face more pointed questions about their own revenue multiples and burn rates when they file for their IPOs. The SpaceX precedent could compress the timeline for those listings, as founders and venture backers seek to lock in lofty valuations before any market recalibration. But the specter of 100x sales and ongoing losses will follow them to the roadshow.