$200-$400 a trade and you do this several times a day? Yowsers! My wife would crap on herself if she found out I was pull in several nice trades like that daily.
Do you swing trade with day trader status so you can make round trips if you need to in the same stock?
I looked up scalp trading on Investopedia. It seems like you would run up quite a bit in commissions unless the small changes are relatively huge i.e. scalping $1000 gain from $15K-20K share purchase.
Investopedia explains 'Scalping'
Traders who implement this strategy are known as scalpers. The main goal is to buy (or sell) a number of shares at the bid (or ask) price and then quickly sell them a few cents higher (or lower) for a profit. Many small profits can easily compound into large gains if a strict exit strategy is used to prevent large losses.
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