TD Ameritrade problem?

[stoxtrader]

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Stephen, say i have $1000 and buy stocks monday morning and sell monday afternoon. i wont be able to trade tuesday and i have to wait like 3 days before i can trade again..if i have a margin account will this 3 day waiting period be gone??

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changing to a margin account should solve this issue. I think the reason for it is because when you sell something your broker does not recieve the cash until the trade settles, which is date of the trade + 3 business days.