Notwithstanding the post-hoc rationalization of one of the people trying to take advantage of the indexers, I suspect that if you asked them, the indexers would

Notwithstanding the post-hoc rationalization of one of the people trying to take advantage of the indexers, I suspect that if you asked them, the indexers would all prefer 100% to be able to make their trades without the arbitrageurs and do not feel any sort of debt of gratitude to them for "pre-positioning" the market.