S&P Global Official Statement: No Index Inclusion Exemptions Based on Market Cap — SpaceX Must Still Wait After IPO
N.R. Finch
S&P Global on Thursday confirmed it will not relax S&P 500 inclusion rules for mega-cap IPOs — SpaceX, even at a $1.75 trillion valuation, must serve the full 12-month waiting period before it can qualify.
What exactly did S&P reject?
S&P Dow Jones stated that no company should be exempt from financial viability, waiting-period, or IWF (investable weight factor) requirements based on market cap alone.
This means → no matter how large a company is at listing, it must clear the same hurdles: 12-month seasoning + profitability + public float thresholds before S&P 500 eligibility.
In plain terms = the S&P 500 does not hand out fast passes — no matter how big you are, you wait in line.
How big is the SpaceX IPO?
SpaceX plans to go public next week, targeting $75 billion in proceeds at a valuation of roughly $1.75 trillion.
If successful, it would rank among the top ten U.S. public companies by market cap and set the record for the largest IPO in history.
This means → a company that is bigger than most S&P 500 constituents on day one still cannot join the index until mid-2026 at the earliest under current rules.
Why did Nasdaq and FTSE Russell go the other way?
Nasdaq has already changed its rules: SpaceX could join the Nasdaq 100 after just 15 trading days.
FTSE Russell went further, cutting its waiting period to 5 trading days.
This reflects a fundamental split inside the index industry — S&P chose caution while its rivals chose speed, a rare three-way divergence among the top index providers.
What is the real question behind this split?
Companies stay private longer and reach enormous valuations before listing. Whether indices can keep up with the real structure of the market is now an open debate.
Those favoring fast inclusion argue indices should add large companies quickly to match what investors actually own.
Opponents worry that adding IPO stocks too soon forces passive funds to buy before price discovery is complete, exposing them to higher volatility.
What does this mean for ordinary investors?
If you hold an S&P 500 index fund, you will not be forced into SpaceX anytime soon — that is exactly what S&P intends.
But holders of Nasdaq 100 or FTSE Russell-linked funds may automatically own SpaceX within weeks of its listing.
In plain terms = "buying an index fund" is not one decision — which index you buy determines when and at what price you passively acquire SpaceX.
What to watch next?
Bloomberg Intelligence ETF analyst James Seyffart said: "I am genuinely surprised, but S&P is the market leader — it can afford to go against the grain."
This means → S&P can hold the line for now, but once SpaceX lists and the market-cap data is real, pressure to revise the rules will only intensify.
The key test: whether S&P loosens its rules within the 12 months after SpaceX goes public.
Content is for reference only, not financial advice.