I imagine the vast majority don’t care. All they care about is trying to hit their 401k or Roth IRA contributions for the month.

> Perhaps they’re afraid announcement would trigger divestment

S&P don't get a choice around whether they announce their methodology or not.

That said, the rule change at the NASDAQ 100 doesn't seem to have impacted pricing or allocation. I can't imagine that many people are that concerned about this. (I posted the public-comment request from S&P to HN [1]. The response was crickets.)

[1] https://news.ycombinator.com/item?id=48054324