SEC Regs have me confused... if I have 50,000.00 in my margin account (2:1) does that mean that in any 3 day period I can only buy 1000 shares @ 50 and sell the same? If on Monday I were to buy 1000 shares at 50 bucks per share and 20 minutes later sell the same 1000 shares then I would have to wait until Thursday of the same week before I can use my money to buy again? I hope I am wrong. Thanks