Goldman, I use Ameritrade and the scenario is this. I buy 10,000 shrs of ABC and sell them the same day. The funds will not be available to use again for 3 busi days. This applies to each stock you own. If I buy 20,000 shrs of CDE and hold them for 3 busi days (the funds have been settled), when I sell them THEN the funds are availble to use immediately. There's always a 3 day lag time for funds settlement. Happy Thanksgiving to all....RTB