SpaceX stock could receive a much-needed boost on September 21, when a rebalancing of the Nasdaq-100 is expected to increase its index weight from 1.25% to 2.25%, potentially adding $15.5 billion in passive inflows, according to JPMorgan. The company, which went public in June 2026 at an IPO price of $135 per share and now carries a market capitalization of about $1.97 trillion, has seen its stock fall roughly 12% from its opening price of $171.74 on June 15. Investors are cautioned that more than 1 billion shares held by pre-IPO investors such as insiders, early backers, and employees are expected to become available by the end of October, with another tranche of 1.3 billion shares potentially hitting the market after third-quarter results in November, though holders may choose not to sell. Nasdaq had earlier changed its index methodology on May 1, adding a Fast Entry provision that lets newly listed companies join the Nasdaq-100 on an expedited basis if their full market cap ranks among the top 40 constituents, a move JPMorgan estimates brought about $4.3 billion in passive inflows into SPCX stock. SpaceX remains excluded from the S&P 500, which said in a June 4 press release that exceptions to financial viability, seasoning, and IWF requirements should not be granted solely based on market capitalization. For Q2 2026, SpaceX reported revenue of $7.8 billion, up 92% year-over-year, and a net loss of $541 million, improving from a net loss of $1 billion a year earlier, while holding $93.5 billion in cash and cash equivalents.
Nasdaq IncNasdaq is mentioned for its May 1 index methodology change adding the Fast Entry provision and for the September 21 Nasdaq-100 rebalancing, but the story is about SpaceX's index inclusion, not Nasdaq's own business.
JPMorgan Chase & CoJPMorgan is cited only as the source estimating $15.5B passive inflows and $4.3B from the Fast Entry change, not as a subject of the news.
Space Exploration Technologies Corp. Class A Common StockNasdaq-100 rebalancing is expected to lift SpaceX's index weight from 1.25% to 2.25%, potentially adding $15.5 billion in passive inflows.
