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SpaceX Set for Major Nasdaq-100 Influx
14 Sep
Summary
- SpaceX's Nasdaq-100 weight may rise from 1.25% to 2.25%.
- A rebalancing could add $15.5 billion in passive investment.
- Over 1 billion pre-IPO shares may become available by October.

SpaceX, which debuted on the stock market in June 2026, is poised for a notable event on September 21, 2026. A rebalancing of the Nasdaq-100 index is anticipated to increase SpaceX's stock weight from 1.25% to 2.25%. This adjustment is projected to attract approximately $15.5 billion in passive investment inflows.
Despite its current market capitalization of around $1.97 trillion, SpaceX stock has seen a 12% decline since its initial trading price. However, potential investors should approach with caution. A substantial volume of over 1 billion pre-IPO shares are expected to become available for sale by the end of October 2026, with another 1.3 billion shares possibly released after the third-quarter earnings report in November 2026.
Historically, Nasdaq's rule changes have indirectly benefited SpaceX. Notably, a "Fast Entry" provision implemented on May 1, 2026, allows newly listed companies with a market cap ranking among the top 40 Nasdaq-100 constituents to join the index more rapidly. This demonstrates Nasdaq's evolving methodology for incorporating significant new companies.