Earlier quoted context omitted.
S&P500 is not a total market index. It tracks a specific kind of large firm, with certain filters. Fast tracking means that the market likely wont have enough time to find the settled price (especially with the knowledge that passive funds are about to buy), and including a mispriced thing does not necessarily make the benchmark more accurate.
Those filters for S&P 500 inclusion criteria have changed many times. They are not sacred nor set in stone. The question is, do those filters, which were designed for GAAP profitable traditional companies & discriminate against fast growing cash-flow-reinvesting startups that prioritize growth over profit, unnecessarily exclude major players in the U.S. stock market? The S&P inclusion criteria reward companies that p…
The price markets find would still inevitably be influence by the knowledge that the demand would increase massively in a few months.
> inclusion criteria reward companies that prioritize profit over growth
Or stable and sustainable growth. Whatever else SpaceX, OpenAI, Anthropic valuations are price in extremely optimistic growth. But yeah, I do see a point that including adequately priced growth stocks could be a net benefit but of course accouting for the actual valuation would turn index funds into managed ones.
Thankfully its not an issue at all since there is Nasdaq 100.