"When an index fund investor sells, they’re technically selling their holdings in direct proportion to their weighting in the index. So there is literally no ma

"When an index fund investor sells, they’re technically selling their holdings in direct proportion to their weighting in the index. So there is literally no market impact." Have to take the rest of the article with several grains of salt after reading this. Even if the index was spread against all stocks it would have an impact. It implies that you can only move money around the market, not take it out of the market altogether.