SpaceX wants into the S&P 500. The S&P 500 is in no rush to oblige.

S&P Dow Jones Indices announced on June 4 that it will not alter its eligibility criteria for the benchmark index, keeping in place the existing rules that require a 12-month seasoning period and demonstrated profitability for large IPOs. The decision directly impacts SpaceX, which is planning what would be the largest IPO ever, with an estimated valuation between $1.75 trillion and $1.77 trillion.

Other major index providers have already moved to accommodate megacap IPOs with faster inclusion pathways, some reducing waiting periods to roughly 15 days. S&P Dow Jones chose to stand pat.

What the rules actually require

The S&P 500’s inclusion criteria require a company to trade publicly for at least 12 months, and it must show positive cumulative earnings over the most recent four quarters combined with a positive most-recent quarter.

For SpaceX, that second requirement is where things get uncomfortable. The company reported a $4.94 billion loss in 2025. Even if SpaceX goes public in 2026 and immediately begins generating profits, the earliest realistic window for S&P 500 inclusion stretches to mid-2027.

SpaceX’s advisors had reportedly engaged with leading index operators to explore the possibility of expedited entry into major benchmarks. The strategy was straightforward: faster index inclusion would boost liquidity for shareholders after the IPO, since passive funds tracking the S&P 500 would be forced buyers. That gambit worked with other index providers. It did not work with S&P Dow Jones.

Why S&P Dow Jones isn’t budging

The decision surprised some market participants who had been led to believe changes were on the horizon. Investment banks and companies eyeing significant IPOs had been pressuring index providers to modernize their inclusion timelines.

S&P Dow Jones has emphasized that no changes have been made to its indexing process. The S&P 500 is the backbone of roughly $16 trillion in indexed and benchmarked assets globally.

What this means for investors

The immediate consequence is that anyone hoping to gain SpaceX exposure through S&P 500 index funds will be waiting at least a year post-IPO, and likely longer. Other indices that have adopted faster inclusion pathways, with waiting periods as short as 15 days, will capture SpaceX well before the S&P 500 does.

For SpaceX specifically, the $4.94 billion loss in 2025 adds another layer of uncertainty. The 12-month seasoning period is the easier hurdle. Profitability is the harder one. Investors watching this space should pay close attention to SpaceX’s quarterly earnings trajectory post-IPO, because that profitability requirement is the real gatekeeper, not the calendar.