Analysis-SpaceX Debut Draws a Crowd, but Few Recent Hot IPOs Outpace the Market

Wall Street’s anticipation for SpaceX’s upcoming IPO in June has overshadowed a broader trend: most high-value initial public offerings in recent years have failed to outperform the S&P 500. Reuters analyzed the top 50 IPOs by valuation over the past five years and found that investors would have fared better with a broad-market index fund roughly three-quarters of the time. The average return for these IPOs stood at 27% through May 21, far below the S&P 500’s 53% gain during the same periods. SpaceX, set to debut under the ticker ‘SPCX’ with a potential valuation of $1.75 trillion, is the latest in a wave of high-profile listings, including AI firms OpenAI and Anthropic. However, the company’s price-to-sales ratio—nearly 100—far exceeds peers like Nvidia (24), raising concerns about sustainability. University of Florida professor Jay Ritter noted that companies with extreme valuations often underperform, despite optimistic future outlooks. Among recent winners, AI chip designers Astera Labs and Arm Holdings have surged over 700% and 400%, respectively, since their IPOs. Cerebras Systems, another AI chipmaker, rose 52% on its debut but has since dropped 27% from its peak. In contrast, Didi Global’s shares have fallen 74% since its 2021 IPO, while Rivian Automotive has plummeted 82%, despite initial hype. Even high-flying tech firms have struggled. Figma’s stock, which quadrupled on its first day, has since fallen 35% amid fears generative AI could disrupt its business model. The analysis highlights the volatility of IPOs, where early gains often evaporate as market realities set in. Elon Musk’s SpaceX is making retail access easier by offering shares via platforms like Robinhood and SoFi, but the Reuters data suggests caution. While AI and space exploration remain hot sectors, historical underperformance raises questions about whether SpaceX’s valuation reflects true market potential or speculative fervor.