> Managing the S&P 500 fund is actually pretty tricky since everyone knows when the index changes and they know what trades you have to make so they try to take

> Managing the S&P 500 fund is actually pretty tricky since everyone knows when the index changes and they know what trades you have to make so they try to take money from you. You have to employ a lot of tricks to avoid being victimized as an index fund I'd agree that managing an ETF is probably harder than most people think, but its very debatable as to if ETF's are being "victimized". Like the linked article says, if you want to buy large chunks of a company then you have to pay for it. http://kiddynamitesworld.com/where-bloomberg-discovers-that-large-orders-have-market-impact/ http://kiddynamitesworld.com/where-bloomberg-discovers-that-...