Suppose you have a portfolio all tied up in stocks and it is worth 50k. How much capital is needed to sell the whole portfolio at the open each day and buy a whole new portfolio worth 50k ? Each day you do this. ( You are turning the whole portfolio over each day ). Is there some extra amount of capital required to do this to satisfy the settlement process ? Is there anyway to get around this requirement by using margin or day trading account ? I have to think hedge funds have some way of getting around the settlement period.