Literally the index. If you track the NASDAQ as part of your index you must obey it's inclusion rules.
Contrary to (apparently) popular opinion, index funds are not people.
So, who is being forced to buy that index?
Ok but there are very few indices following NASDAQ, compared to S&P 500.
Contrary to (apparently) popular opinion, index funds are not people.
So, who is being forced to buy that index?