SpaceX IPO Hype Sparks Debate as History Shows Most Mega Listings Underperform Market

BY COMFORT OGBONNA

Wall Street investors are gearing up for what could become one of the biggest stock market debuts in history as Elon Musk’s space and satellite company SpaceX prepares for its highly anticipated initial public offering next month. Excitement surrounding the listing has intensified across financial markets, with analysts predicting that the offering could shatter previous valuation records and attract enormous demand from both institutional and retail investors.

Yet despite the growing hype, market history suggests that investors rushing into blockbuster IPOs often fail to outperform the broader stock market over the long term.

An analysis of the 50 largest IPOs by valuation over the past five years shows that most investors would have generated stronger returns by simply buying an S&P 500 index fund instead of purchasing shares in newly listed companies. The findings highlight the risks tied to high-profile stock offerings, especially those involving companies already valued at extraordinary levels before they begin public trading.

According to the analysis, investors who bought shares at the IPO prices of those companies would have earned an average return of about 27% through May 21. Over the same periods, however, the S&P 500 delivered an average gain of roughly 53%, significantly outperforming many of Wall Street’s most celebrated public listings.

The comparison assumes investors were able to purchase shares at the official IPO price, something that is often difficult for ordinary retail traders because allocations are typically reserved for institutional clients and favored investors. Many retail participants instead buy during the first day of trading, when prices can surge sharply amid speculative excitement.

Historical performance data suggests that investors who bought during those first-day rallies often performed even worse over time as initial enthusiasm faded and valuations cooled.

Market analysts say the trend reflects a broader issue in modern IPO markets, where many companies remain privately funded for years while their valuations climb rapidly before ever reaching public exchanges.

Dennis Dick, a proprietary trader at Triple D Trading, said it has become increasingly difficult for ordinary investors to profit from major IPOs unless they gain access to shares long before the public listing stage.

SpaceX’s debut is expected to be one of the defining financial events of the year and could pave the way for other major technology and artificial intelligence companies to enter public markets. Firms such as OpenAI and Anthropic are also widely expected to explore future stock offerings as investor demand for AI-related businesses continues driving U.S. markets to record highs.

SpaceX recently filed its prospectus and is expected to trade under the ticker symbol “SPCX.” Reports indicate that the company could launch its public offering as early as June 11. Elon Musk is also reportedly making a portion of shares available to retail investors through platforms including Robinhood and SoFi, potentially giving smaller traders broader access to the offering at lower entry prices.

The company is believed to be targeting a staggering valuation of approximately $1.75 trillion, which would make it by far the largest stock market listing ever seen on Wall Street. Despite the massive valuation and SpaceX’s dominant role in satellite launches and commercial space exploration, some analysts warn that high expectations could create major risks for investors.

University of Florida finance professor Jay Ritter, who has spent decades studying IPO markets, said companies with especially high price-to-sales ratios have historically struggled to maintain long-term momentum after going public.

At the expected valuation level, SpaceX would carry a price-to-sales ratio approaching 100, an exceptionally high figure even by modern technology standards. By comparison, AI chip giant Nvidia currently trades at a price-to-sales ratio near 24 despite its explosive revenue growth and profitability. Financial reports also indicate that SpaceX lost nearly $5 billion last year, raising additional questions about whether its valuation can be justified by current earnings performance.

Ritter noted that investors are often drawn to companies with compelling visions of the future, particularly in transformative industries such as artificial intelligence and space technology. However, he cautioned that even the most promising narratives can face setbacks ranging from weaker-than-expected growth to mounting competition and operational challenges.

Among the standout success stories in recent IPO history are AI-focused semiconductor firms Astera Labs and Arm Holdings. Astera Labs has surged more than 700% since its 2024 debut, while Arm Holdings has climbed roughly 400% since going public in 2023. Both companies significantly outperformed the broader market and benefited from soaring investor enthusiasm surrounding AI infrastructure and chip demand.

Another AI chip company, Cerebras Systems, initially jumped more than 50% after its IPO earlier this month before retreating sharply from its intraday highs, illustrating how quickly sentiment can shift in speculative sectors.

Not all highly anticipated IPOs have delivered strong returns, however. Chinese ride-hailing giant Didi Global became one of the most notable disappointments after being delisted from the New York Stock Exchange in 2022 following regulatory pressure from Chinese authorities. The company’s shares are now trading over the counter at levels far below their original IPO price.

Electric vehicle manufacturer Rivian Automotive has also struggled since its blockbuster 2021 debut. The company briefly became one of America’s most valuable automakers during its early trading days, but its shares have since plunged more than 80% as investors grew concerned about ongoing financial losses, slowing demand and heavy cash burn.

Design software company Figma experienced a similarly dramatic trajectory. Shares nearly quadrupled during their first day of trading last year as investors rushed into the stock. Since then, concerns that generative artificial intelligence could weaken Figma’s competitive advantage have pushed the stock substantially lower.

Even some of the largest IPOs in history have ultimately lagged behind the broader market. Chinese e-commerce giant Alibaba, once celebrated as the “Amazon of China,” remains the largest U.S. IPO by valuation. Although its shares have doubled since its 2014 debut, the S&P 500 has risen more than 300% over the same period, meaning investors would still have achieved stronger gains through a simple index fund investment.

With SpaceX now preparing to enter public markets amid extraordinary excitement, investors face a familiar question: whether the promise of groundbreaking innovation and massive future growth can justify valuations already towering above traditional financial benchmarks.