Well, they changed that rule as well. If the float is less than a set percentage, then it is weighted as a much higher percentage. Something like the minimum for weighting is 12% where SpaceX's float will be below 5% (those are the numbers I recall, but I don't have a lot of confidence in them.) That means they will be weighted as if the float was 12%.
No, the parent was saying the other rule change is arbitrary.
The tiny float and just a few days before the index funds buy means they have to buy without any more revenue / earnings info than was already published pre-IPO. 90 days is a quarter, so there WILL be more price discovery before a 0 day index fund seasoning period.
