Offer your thoughts or opinion on the input financial query or topic using your financial background.

Using a cash account can someone trade all day on it?
According to Regulation T, you can make as many day trade (round trip) stock purchases using a cash account as long as you have the funds to cover each and every round trip sale. However, the funds generated from the sales cannot be used again to purchase new stocks until the settlement period (T-2 or T-3) is over. For example, say you have $10000 dollars in your cash account and no securities. You buy 1000 shares of XYZ stock in the morning at one dollar per share and you sell the stock 30 minutes later because it went up say by 50 cents. According to Regulation T, you cannot use the money generated from the sale of your 1000 shares until after the settlement date. However, you can use the remaining $9000 dollars in your account to execute other trades just as the first trade. You can do this as many times as you want as long as you have funds available to pay for the transaction the same day it's executed. The only thing to worry about and that isn't clear, is, what happens if you perform this action more than 3 times in a week? Does it mean that your cash account now becomes a margin account subject to margin account rules because you executed more than three round trip trades in a five day rolling period?