While scalping, you should also be aware of the on going fundamental events. Not all fundamental events are worth watching but you can’t afford to miss the major events because they impact significantly to the scalpers. One thing is for sure, you can’t predict what will happen in those economic figures. Yes there are expected data shown in the economic calendar, but they do not forecast accurately. When the real figures come out far from the expected figures, the market will fluctuate violently.