Overview
S&P Dow Jones Indices has declined to relax the requirements for entry into its major indices, a decision that delays potential passive fund inflows tied to the inclusion of SpaceX. The index provider confirmed it will retain the existing set of thresholds that determine eligibility for the S&P 500, even as other index operators have recently adjusted their rules to accelerate the admission of large initial public offerings.
What the S&P rules require
To be considered for the S&P 500, a company must satisfy several conditions. These include:
- At least 12 months of trading on public markets.
- A profit under generally accepted accounting principles (GAAP) in the company’s most recent quarter and across the trailing four quarters.
- A free-float of at least 10% of shares outstanding.
- A minimum market capitalization threshold of $22.7 billion.
SpaceX, which is expected to debut on June 12, does not meet the first three of those criteria. Under the rules as stated, it would not be eligible for S&P indices until at least June 2027, assuming other conditions are met by that time.
Where SpaceX currently stands
The company has yet to record GAAP profitability. In 2025 SpaceX reported a net loss of $4.94 billion, while revenue increased 33% to $18.67 billion. Calculations cited in market reporting indicate SpaceX’s free-float would be only about 3%-4%, well under the S&P requirement of 10%. On market capitalization, SpaceX would clear the S&P minimum comfortably if it achieves the valuation targeted for its offering - an initial public offering valuation target cited at $1.75 trillion.
Passive inflows that were estimated
Analysts had expected substantial passive fund flows if SpaceX were added to the S&P 500. J.P. Morgan, in a May 11 note, estimated that inclusion could attract roughly $10 billion in passive inflows on the assumption of a $2 trillion market capitalization and a 5% free-float, which would give SpaceX an approximate S&P weight of 0.15%. Under those same assumptions, inclusion in the Russell 1000 was estimated to draw about $4 billion and entry into the Nasdaq 100 about $4.3 billion.
Pathways to index inclusion and timing
Because S&P is not modifying its 12-month trading-history rule, SpaceX’s earliest eligibility for the S&P 500 is June 2027. Even then, admission would be contingent on the company reporting GAAP profit in the requisite periods and expanding its public float above 10%.
By contrast, Nasdaq and FTSE Russell have shortened their trading-history requirements, creating faster routes for large new listings into the Nasdaq 100 and Russell indices. A listing on Nasdaq would automatically add SpaceX to the Nasdaq Composite. Because the Composite skews toward technology companies, the addition of a large new entrant could widen performance differences between funds tracking the Nasdaq and those tracking the S&P 500.
Market and institutional reactions
Some market participants voiced concern about what index inclusion of a very large, unprofitable company would mean for passive investors. "Every retail investor holding an S&P 500 ETF in their 401(k) would become an involuntary SpaceX shareholder, regardless of whether they believe in the story, understand the business, or are comfortable with the risk of a $1.75 trillion unprofitable company," said Jay Woods, chief strategist at Freedom Capital Markets. "The index wasn’t designed to do that. It was designed to reward companies that have already earned their place through profitability, staying power, and the patience of real markets."
Others argued the omission alone is unlikely to drive a broad shift in institutional benchmarking. "The omission of SpaceX in the S&P 500 is just not a strong enough incentive to drive institutions to... change their benchmarks," said Peter Andersen, founder of Andersen Capital Management, in Boston. He noted that institutional benchmark choices are deliberately constructed and not likely to be reset over the absence of a single stock.
Scale of assets tied to benchmarks
The S&P 500 remains the dominant U.S. equity benchmark, with more than $20 trillion in assets tracking the index, compared with roughly $1.4 trillion tracking the Nasdaq 100. The difference in scale underpins why S&P’s decision to keep its entry criteria unchanged matters for the pace and scale of passive flows that would follow any major IPO inclusion.
SpaceX’s route into major U.S. indices will depend on time on market, profitability under GAAP, and a meaningful increase in public float. While other index providers have created quicker pathways, S&P’s unchanged standards mean the company faces a multi-year wait for S&P 500 eligibility unless it materially changes its financial profile and shareholder structure.