S&P Global Reaffirms Index Rules, Blocking SpaceX From Fast-Track S&P 500 Entry

S&P Global said Thursday it will not alter the core eligibility requirements for its flagship S&P 500 index, effectively closing the door on an accelerated path for SpaceX — which is targeting a $1.75 trillion valuation in what would be the largest IPO in history — to join the benchmark shortly after its public debut.

The index provider had consulted with investors on potential rule changes that would have shortened the mandatory seasoning period for newly listed megacap companies, waived minimum float requirements, and removed its profitability requirement. After that review, S&P left each of those criteria intact.

"Exceptions to the financial viability, seasoning, and IWF requirements should not be granted solely based on market capitalization," the company said in a statement.

To qualify for the S&P 500, a company must report a profit under Generally Accepted Accounting Principles in its most recent quarter and in the sum of its four most recent quarters. SpaceX reported a net loss of $4.94 billion in 2025, even as revenue climbed 33% to $18.67 billion — a financial profile that disqualifies it under the unchanged rules.

SpaceX is raising $75 billion in its IPO and is targeting a valuation that would place it among the top 10 most valuable U.S.-listed companies. Only a fraction of its shares are expected to be available for trading at launch. Had S&P altered its rules, passive S&P 500 index funds — which collectively hold trillions of dollars in assets — would have been required to purchase SpaceX shares upon inclusion.

Art Hogan, chief market strategist at B. Riley Wealth, said S&P's decision reflects well on the index's reputation. "It speaks highly of the credibility of S&P Dow Jones Indices to be rules-based and make sure there's profitability before entrance to the index," Hogan said. "Making exceptions because companies are so large and have been private so long yet are still not profitable, didn't make a great deal of sense."

S&P did announce modifications to its broader S&P Total Market Index and Dow Jones U.S. Total Stock Market Index, creating a pathway for SpaceX to join those lesser-followed benchmarks.

SpaceX has received more favorable treatment elsewhere in the index landscape. Nasdaq has already amended its rules to make it easier for SpaceX, Anthropic, and other newly listed megacaps to join the Nasdaq 100, meaning Nasdaq 100 index funds will be required to buy a sizeable portion of publicly available SpaceX shares upon that inclusion. FTSE Russell has also announced fast-entry rules under which SpaceX has become eligible for the Russell U.S. Equity Indexes and the FTSE Global Equity Index Series.

Elon Musk's approach to the SpaceX IPO has diverged from conventional practice in several respects, including plans to give retail investors a larger role in share allocations, a governance structure designed to preserve strong founder control, and the push for early index inclusion — the last of which S&P has now declined to accommodate.

The S&P 500's decision underscores the tension between exchange operators' efforts to attract richly valued private firms and the rules-based frameworks that have long governed index composition. With SpaceX, Anthropic, and OpenAI each edging closer to public offerings, index providers face mounting pressure to adapt — though S&P's ruling signals that at least one of the most influential benchmarks will hold its existing standards firm, regardless of the size of the company seeking entry.

Disclaimer