S&P Dow Jones Indices has announced that it will uphold its current eligibility standards for major benchmarks, including the widely followed S&P 500. This decision effectively bars rapid entry for significant tech IPOs, such as Elon Musk’s SpaceX, and is expected to delay billions of dollars in investments from passive funds.
In an official statement, the index provider confirmed it will not reduce the existing 12-month seasoning period for newly public companies or waive requirements related to profitability and public float, which are already established. This approach stands in stark contrast to moves made by competitors like Nasdaq Inc. and FTSE Russell, who have begun to adjust their entry rules for significant new listings.
For newly listed companies such as SpaceX, this means an absence of immediate demand from funds tracking the S&P 500. Predictions from Bloomberg Intelligence suggest that rapid inclusion could have triggered approximately $14 billion in passive investments for SpaceX, over $8 billion for OpenAI, and about $4.6 billion for Anthropic PBC.
The decision is particularly relevant in a changing financial landscape, where some companies achieve notable scale before entering the public markets. Earlier this year, S&P Dow Jones launched a consultation to examine whether its index rules should adapt to the new reality of companies becoming large enough to be categorized alongside established blue-chip entities. This evolving discussion has spotlighted the concept of “fast entry” in the industry.
Critics of the push for quicker index inclusion emphasize the importance of existing guidelines regarding profitability, float, and trading history, arguing that these rules are designed to shield benchmarks from fleeting trends. Rapid inclusion of IPOs, they warn, could lead passive funds into greater volatility by requiring them to purchase shares before established market prices are available.
Conversely, proponents believe that indexes should reflect the actual market investors own and that mega firms can have economic significance before meeting traditional inclusion metrics.
As a consequence of this new announcement, SpaceX, currently planning a potentially record-breaking IPO, will not qualify for the S&P 500 until at least a year after its market debut. The company will also have to meet the index’s standards for profitability and public float to be considered.
James Seyffart, an ETF analyst at Bloomberg Intelligence, expressed surprise at the decision, recognizing S&P’s capacity to maintain its authority in the market despite contrasting trends among competitors. In comparison, Nasdaq has recently modified its criteria so that SpaceX can join the Nasdaq 100 Index within just 15 trading days—down from a three-month wait. FTSE Russell has taken a similar stance, decreasing its waiting period to five trading days.
As the world’s most closely watched equity benchmark, the S&P 500 tracks about $7.5 trillion in passive funds, with an additional $3.4 trillion in actively managed assets benchmarked against it. Data from the Investment Company Institute reveals that passive domestic equity index mutual and exchange-traded funds in the U.S. held around $14.4 trillion in assets at the end of April, while active funds amounted to $8.2 trillion.
Market strategist Michael O’Rourke from JonesTrading praised the S&P Dow Jones index committee for its commitment to maintaining high standards, particularly in light of recent moves by other indices to include high-profile yet unprofitable companies in their portfolios.



