Space Exploration Technologies Corp. (SpaceX) is making headlines again, this time for its swift inclusion in the Nasdaq-100 Index. Less than a month after its blockbuster IPO, SpaceX is slated to be added to the prestigious index before the market opens on July 7, 2026, a move anticipated to attract billions in new investment.
Billions in Passive Inflows Expected
The addition of SpaceX to the Nasdaq-100 is expected to trigger significant passive fund inflows. According to a Reuters report citing J.P. Morgan, this inclusion could draw approximately $4.3 billion, providing fresh demand for the stock shortly after its public debut. Funds tracking the Nasdaq-100, such as the Invesco QQQ Trust (QQQ) and Invesco NASDAQ 100 ETF (QQQM), collectively manage nearly $800 billion in assets and will automatically purchase SpaceX shares to mirror the updated index composition.
Historically, companies added to major indices often experience short-term buying pressure as passive funds rebalance their holdings. However, the long-term performance remains dependent on the company's fundamentals and broader investor sentiment.
Volatile IPO Debut
SpaceX's journey on the public market has been dynamic since its IPO priced at $135 per share and debuted at $150 on June 12, 2026. The stock initially surged, climbing as much as 67% to an intraday high of $225.64 by June 16. This rally, however, proved short-lived. Shares have since retreated, closing at $153.23 on the Friday preceding its Nasdaq-100 inclusion, roughly 32% below its peak, though still approximately 20% above its IPO price. This volatility reflects both strong initial investor enthusiasm and subsequent profit-taking.
Modest Initial Index Weight
Despite an estimated market capitalization around $2.1 trillion, SpaceX is not expected to immediately become one of the largest constituents of the Nasdaq-100. Nasdaq employs a modified market-capitalization methodology that considers a company's free float—the shares available for public trading—and imposes limits on concentration. Analysts anticipate SpaceX's initial weight in the index to remain below 1%, considerably smaller than heavyweights like NVIDIA, Apple, and Microsoft.
S&P 500 Inclusion Still Distant
While SpaceX has rapidly secured a place in the Nasdaq-100 and was recently added to the Russell 1000 Growth Index, entry into the S&P 500 is likely a longer-term prospect. S&P Global maintains strict eligibility criteria, including a requirement for companies to be profitable under Generally Accepted Accounting Principles (GAAP) in both the latest quarter and cumulatively over the previous four quarters. According to Reuters, SpaceX reported a net loss of $4.94 billion in 2025, despite revenue rising 33% to $18.67 billion, which currently makes it ineligible for S&P 500 inclusion.
What Investors Should Watch
The Nasdaq-100 addition guarantees fresh demand from passive funds, but whether this translates into another sustained rally remains uncertain. Given the stock's sharp rise post-listing and subsequent pullback, investors will closely monitor if the expected inflows have already been factored into the share price, or if the index inclusion provides a renewed near-term catalyst for growth.