SpaceX $2T Valuation Tested: Profit-Taking Wipes $150B in 6.5% Plunge

Markets had priced in near-perfection for SpaceX after its Nasdaq debut, but the 6.5% slide to $178.50 on June 18 served as a reality check for anyone banking on a linear trajectory to $2 trillion. With a float constrained by Elon Musk’s majority ownership, the stock became a lightning rod for profit-taking, particularly by retail traders who had pumped in over $300 million only to step back abruptly. For institutional investors, this correction is a classic post-IPO phenomenon—magnified by the unprecedented scale of the offering and the meme-stock dynamics that have come to define 2026 market structure.

On June 18, 2026, the largest IPO in history experienced its first major test, as shares of SpaceX tumbled 6.5% to $178.50, wiping out more than $150 billion in market capitalization. The decline marked a sharp reversal from the euphoric buying that had propelled the stock over 30% above its $135 initial public offering price just days earlier, briefly elevating Elon Musk to the status of the world's first trillionaire. The selloff, which extended losses from the prior session, underscored the extreme volatility that analysts had warned about given the company’s relatively small public float and sky-high valuation. The pullback also dragged down the broader commercial space sector, with peers like Rocket Lab and Planet Labs falling around 3% and AST SpaceMobile shedding 7%.

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Rocket Lab USA (RKLB) declined 3% to around $5.20, AST SpaceMobile (ASTS) sank 7%, and Intuitive Machines (LUNR) fell 3%.

The IPO, which took place on June 15 amid a shortened trading week due to the Juneteenth holiday, shattered records not only by sheer capital raised but also by the intensity of retail investor participation. According to data from Vanda Research, individual investors had poured more than $300 million into SpaceX shares over the three trading sessions leading up to the June 18 rout. That momentum collapsed abruptly, with net retail purchases totaling just $9.1 million as of 2 p.m. ET on that day. The dramatic fade in retail buying power highlights the fickle nature of meme-like stock frenzies, where a surge of excitement can quickly dissipate once the initial pop is realized.

For institutional investors, the pullback was not entirely unexpected. IPOX Schuster analyst Kat Liu noted, “Given the magnitude of the IPO and the strong initial performance, some degree of profit-taking is not surprising.” Liu described it as “a particularly eventful and shortened trading week for the largest IPO in history.” Indeed, market participants had been bracing for turbulence, given that SpaceX debuted with a public float limited by Elon Musk’s decision to retain majority control. This concentrated ownership structure amplified price swings, as even modest selling pressure could overwhelm liquidity. The situation evoked memories of other high-profile IPOs that experienced whiplash in their early days, such as Arm Holdings and Rivian, though the scale of SpaceX’s market cap made the stakes far greater.

The impact on the space industry extended beyond SpaceX. Rocket Lab USA (RKLB) declined 3% to around $5.20, AST SpaceMobile (ASTS) sank 7%, and Intuitive Machines (LUNR) fell 3%. These declines suggest that investors, particularly those with a short-term mindset, now view the sector as a linked trade rather than differentiating between individual companies. While SpaceX’s fundamentals—steadily growing launch cadence, Starlink revenue, and Starship development—remain robust, the market’s sentiment-driven correction may temporarily cloud the narrative of space as an investable frontier industry.

Looking ahead, the key question is whether this selloff represents a healthy normalization or the beginning of a more prolonged downturn. The stock remains 32% above its IPO price, meaning early institutional backers and retail buyers who got in at $135 are still sitting on substantial gains. However, the loss of $150 billion in market cap in a single afternoon underscores the precariousness of a valuation built on high expectations rather than current earnings multiples. Analysts will now closely watch SpaceX’s upcoming quarterly financials—its first as a public company—to gauge whether revenue growth from launch services and Starlink can justify a price tag that briefly touched $2 trillion. The company’s progress on the fully reusable Starship system will also be critical, as it represents the long-term bet that underpins Musk’s vision of interplanetary colonization and heavy-lift dominance.