SpaceX Loses $600B in 3 Days: What It Means for AI Startup Exits

For venture capitalists and startup founders, SpaceX's wild ride — from a record $75B IPO to a $600B wipeout in three days — is a stark reminder that public markets can be unforgiving even for category-defining tech companies. The frenzy-driven float, low retail availability, and subsequent pivot to massive debt raise underscore the risk when 'hot' IPOs collide with profit-taking reality. As the AI IPO pipeline fills with competitors like Anthropic and OpenAI, the question becomes whether investors will apply the same brutal haircuts.

SpaceX shares suffered a brutal third consecutive day of losses on Monday, plunging 16% to close at $154.60 and capping a 23% slide that vaporized over $600 billion in market capitalization. The selloff left the Elon Musk-led aerospace, satellite and AI conglomerate with a market cap just above $2 trillion, still the sixth-largest publicly traded company but a stark reversal from the euphoria that greeted its record $75 billion initial public offering just weeks earlier. The immediate triggers were two announcements that rattled investors: the company’s first-ever investment-grade bond offering, expected to raise at least $20 billion, and a multibillion-dollar agreement to provide cloud compute to Reflection AI, a startup. While both moves reinforce SpaceX’s aggressive pivot into artificial intelligence following the February acquisition of xAI, the need for massive debt raised fears about cash burn and stretched valuations, especially after a retail-driven IPO frenzy had pushed shares well above the $135 offer price.

“

SpaceX shares suffered a brutal third consecutive day of losses on Monday, plunging 16% to close at $154.60 and capping a 23% slide that vaporized over $600 billion in market capitalization.

The stock’s decline must be seen against the unique structure of the listing. SpaceX floated only 4.2% of shares outstanding, creating a classic low-float IPO that amplifies volatility. Data from Vanda Research show retail investors bought a net $405 million in the first five sessions, underscoring the extent to which individual traders drove early gains. Retail enthusiasm often burns bright and fast: as Michael O’Rourke of JonesTrading noted, “Sellers are back in control. Anyone in the world who wanted to buy this has bought it already.” The rapid reversal underscores a broader market dynamic where high-profile IPOs can become momentum trades that unravel once the initial buying wave exhausts itself. Even after the plunge, however, SpaceX’s shares remain about 15% above the IPO price, suggesting that institutional investors who gained allocations at $135 are still sitting on comfortable paper profits, while late-arriving retail traders bore the brunt of the downturn.