S&P 500 Shuts Out SpaceX, OpenAI, Anthropic
The S&P 500 index committee rejected SpaceX's inclusion and, by extension, is blocking a path for OpenAI and Anthropic, all of which remain private. The HN thread framed this as a rare institutional check on the concentration of capital: pension funds, which hold trillions in index-tracking products, cannot automatically flow into these companies the way they do into every other major tech company.
The pattern: the biggest companies in the AI boom are deliberately staying private longer, which means retail investors and pension beneficiaries are locked out while early insiders and sovereign wealth funds get the upside. The HN reaction was notably approving of the S&P's decision, with several commenters saying they were reconsidering their index fund strategies anyway.
This connects directly to the broader anxiety about who actually benefits from the current AI wave. The S&P rules exist for liquidity and governance reasons, not as a moral statement, but the effect is the same: the wealth is not distributing.
So what?
If you are building a company and considering staying private indefinitely, understand that you are operating in a political environment that is increasingly hostile to that structure. Regulatory and index pressure on private mega-companies will only grow. If an IPO is on your roadmap at all, the window may matter more than the valuation.