3 Day Trading Rules You Should Never Break Day trading is an addiction. It works like a drug. Both the success (profit) and failure (loss) in it results in more and more trading until it reaches to investor's bankruptcy or to investor's psychological imbalance. This could be saved if an investor follows 3 day trading rules given below. By following these trading rules you can make much money from day trading than you previously made following a hit-or-miss path.