S&P Global has denied SpaceX, OpenAI, and Anthropic the ability to be quickly added to its benchmark indices, a move that delays the flow of billions of dollars in passive investment funds toward these companies. The decision, confirmed by sources familiar with the matter, means the three high-profile private firms won't benefit from immediate demand from index-tracking funds that typically pour money into newly included stocks.
What Fast-Track Inclusion Means
Fast index entry is an accelerated process that allows companies to join major indices like the S&P 500 or S&P 500 Equal Weight outside the regular quarterly rebalancing schedule. It's usually reserved for newly public companies that meet certain market capitalization thresholds and trading requirements. For firms like SpaceX, OpenAI, and Anthropic—all still private but with valuations in the hundreds of billions—fast entry would have opened the door to instant passive fund buying as soon as they went public or were otherwise eligible. Without it, they'll need to wait for the standard quarterly review, a delay that could stretch months or longer.
Who's Shut Out
The three companies represent some of the most valuable private enterprises in the world. SpaceX, the rocket and satellite company valued at around $180 billion, has been seen as a likely future addition to broad market indices once it lists. OpenAI, the artificial intelligence giant behind ChatGPT, carries a valuation north of $80 billion. Anthropic, the AI safety startup founded by former OpenAI employees, is valued at roughly $30 billion. All three had been evaluating public listings or other pathways that would make them eligible for index inclusion, with the hope of fast-track entry to capture immediate passive demand.
Billions in Passive Demand on Hold
The potential financial impact is significant. Index-tracking funds—both mutual funds and exchange-traded funds that replicate benchmarks like the S&P 500—manage trillions of dollars in assets. When a new company joins a major index, these funds must buy its shares, often in massive volumes. Analysts had estimated that near-simultaneous inclusion of these three firms could channel tens of billions of dollars into their stocks within days of their debut. S&P's block delays that inflow, forcing the companies to rely on active investors and retail buyers for initial demand.
The decision is a rare public rejection of fast-track requests from companies that would likely be included eventually. S&P Global has not disclosed its reasoning, but index methodology typically requires a track record of financial performance and liquidity that private companies may lack even after going public. The block does not prevent the firms from being added through the standard review process later.
What Comes Next
SpaceX, OpenAI, and Anthropic now face an uncertain timeline. The next regular S&P index rebalancing is scheduled for September, though the committee can hold special meetings. All three companies are still private, so any index inclusion would depend on them completing an initial public offering or qualifying through another mechanism such as a direct listing. Without fast-track access, they will have to meet the same criteria as any other stock before being considered. No appeals process has been announced, and the companies have not publicly commented on the decision.
