“When you plan for the trade and enter a position, you have a minimum of information regarding the market and the validity of your idea. As the market moves after your entry, you will receive new price action and data about your initial trade idea: the price action of the stock is either supporting or not supporting your reasons for being in that trade. Therefore, you need to manage your open position.”

— How to Day Trade for a Living: Tools, Tactics, Money Management, Discipline and Trading Psychology by Andrew Aziz