SpaceX Shares Rally as Company Surpasses Amazon in Market Value

Elon Musk’s SpaceX is maintaining its extraordinary momentum, heading toward a fourth consecutive day of gains following its record-breaking initial public offering. The rocket and AI pioneer has rapidly ascended the global corporate hierarchy, recently overtaking Amazon.com Inc. to become the fifth-largest stock in the world.

A Historic Surge: Surpassing Global Giants

Since its formal debut on the public markets, SpaceX (Space Exploration Technologies Corp.) has witnessed a staggering rally of approximately 49%. In Wednesday's premarket trading in New York, shares rose by 4.5%, signaling sustained investor appetite despite the massive scale of the offering.

The company’s valuation trajectory is nothing short of historic; it has already eclipsed Amazon and is now positioned roughly $150 billion away from catching up to Microsoft Corp. This surge serves as a critical proof of concept for the market, easing fears that large-scale IPOs might struggle to find liquidity. This is particularly relevant as investors anticipate potential massive public offerings from AI giants like Anthropic PBC and OpenAI, both of which are expected to target valuations in the $1 trillion range by year's end.

Low Float and Retail Demand Driving Volatility

Market analysts point to several structural factors contributing to this rapid price appreciation. Brian Mulberry, chief market strategist at Zacks Investment Management, noted that the rally was not entirely unexpected, highlighting that 30% of the initial issue was made available to retail investors, fueling high demand.

Furthermore, the stock is experiencing significant intraday volatility due to a "low float" environment. On its first day of trading, only about 4.2% of the total SpaceX shares were available for public trading. While this scarcity can drive prices higher, it also presents risks. As insider lockup periods expire in the coming months, the sudden influx of available shares could exert downward pressure on the stock price.

The Impact of Index Inclusion and Macro Factors

The next phase of SpaceX’s market journey will be heavily influenced by index inclusion rules. While S&P Dow Jones Indices has decided not to change its rules to allow new IPOs faster entry—meaning SpaceX will not immediately join the S&P 500—Nasdaq Inc. has updated its rules to allow faster entry for massive companies.

If SpaceX is included in major indices like the Nasdaq 100, it will trigger "forced buying" from passive funds, providing a significant tailwind for the share price. However, some institutional investors may remain cautious, choosing to wait for index inclusion to gain exposure through passive instruments rather than buying directly in the volatile spot market.

Key Takeaways