A Day Trader attempts to produce a profit within a single trading day. It takes tremendous discipline to be a day trader. Top daytraders have a proven day trading system. Day trading can be stressful and requires determination and a keen business sense. Day traders also have high expenses, paying their firms large amounts in commissions, for training, and for computers. The most important question of a Trading System is how much to invest and how many positions to trade at the same time. You need to master the psychology of day trading. An investor needs to have a system that helps him to be prepared for all scenarios of a trade. A trade needs to be completely planned in advance. In the simplest terms, day trading is the purchase and sale, or sale and purchase, of a security on the same day. Day trading is a locationindependent activity. Decide each day how much you are willing to risk in your day trading endeavours and stick to it. Individuals who attempt to day trade without an understanding of market fundamentals often end up losing money. Behind all of the possible financial rewards of day trading lies the potential for financial disaster. Most day traders who trade for a living work for a large institution. Did you know that a successful trader can lose money on 9 out of 10 trades and still make money?