SpaceX is officially being added to the Nasdaq 100 next week. The usual logic is that index inclusion triggers forced buying from passive funds, which should push the price up around the effective date. But these things tend to get front run the moment the announcement drops, so by the time it actually happens the move might already be done.
Anyone who's traded around index inclusion before, does it usually give the stock another leg up or is it pretty much priced in by then? And how do you tell if the move on effective date is real passive fund buying or just retail chasing the headline?