I don't think you can really do it on that kinda scale. Most stocks don't move that much in a day (stocks worth a few dollars might move a few cents). Also, the brokerage fees (even from an online brokerage) would be greater than the 5 dollars you are intending to make.
You need to have a reasonable starting amount (like $1000). If you buy $1000 worth of a stock that is $10, and sell it as 10.50, and your brokerage is less than $50 then you made a profit! Problem is choosing the stock that is going to jump (in this case) 5%.
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who hid my keyboard's PANIC button?
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