SpaceX Surpasses Amazon in Market Value Amid Record IPO Rally

Elon Musk’s SpaceX is continuing its meteoric rise following a historic initial public offering, marking its fourth consecutive day of trading gains. The rocket and AI powerhouse has officially overtaken Amazon.com Inc. in market value, solidifying its position as one of the most dominant players in the global equity markets.

Surpassing Amazon and Chasing Tech Giants

SpaceX, formally known as Space Exploration Technologies Corp., has experienced a staggering rally of approximately 49% since its debut. In premarket trading on Wednesday, shares rose by 4.5%, signaling sustained investor appetite despite a slightly slower pace compared to previous sessions.

By overtaking Amazon, SpaceX has ascended to become the fifth-largest stock in the world. While the momentum is significant, the company still sits roughly $150 billion away from reaching the valuation of Microsoft Corp. This rally serves as a critical litmus test for the market's ability to absorb massive IPOs, especially as high-valuation AI competitors like OpenAI and Anthropic prepare for potential public offerings later this year.

Market Dynamics: Low Float and Retail Demand

Analysts suggest that the stock's performance is partly driven by its unique share structure. On its first day of trading, only about 4.2% of the total stock was available to the public. This "low float"—a relatively small portion of shares available for active trading—has contributed to intraday volatility and pushed prices higher.

Furthermore, the IPO was structured to include 30% of the issue for retail investors. Brian Mulberry, chief market strategist at Zacks Investment Management, noted that this high level of retail availability made the recent surge "really not at all unexpected." However, investors should remain cautious: as insider lockup periods expire in the coming months, the influx of new shares could exert downward pressure on the stock price.

The Impact of Index Inclusion and Macro Factors

The next major catalyst for SpaceX could be its inclusion in major market indexes. 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 added to the Nasdaq 100, index-tracking funds will be forced to purchase the stock, providing a significant tailwind for the share price. In the meantime, some institutional investors may remain on the sidelines, waiting to gain exposure through passive index-tracking instruments rather than buying individual shares.

Key Takeaways