They can be differentiated as:
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Scalpers: Those traders who try to look for profits from those several transactions they carry within the day. Usually the profits are smaller in proportion.
Momentum traders: those traders who look into movement of certain stocks and trade accordingly in those stocks. They basically observe the direction in which certain specific stocks are moving and accordingly trade to derive profits out of the trade.
Technical traders: Those traders who rely on instruments like trend charts, smart charts, momentum charts and speculate the movement of stocks. Using this technical information they trade accordingly.