THE THING ABOUT trading is how incredibly easy it is to wreck your entire portfolio in no time flat. No matter how many years of education or experience you might have, every day presents a new opportunity to screw things up royally. Such is the nature of life: It only takes one really bad decision to ruin everything.
Good trading technique isn’t difficult to master. Using it consistently over time, however, is quite a bit more difficult. Whether it’s setting proper stop-loss orders or trading appropriate size, the rules of the game never change — it’s discipline that ebbs and flows.
It’s for this reason that I’m positively, unequivocally and unwaveringly against “going with your gut” when managing a portfolio. Human instinct tends to lead people straight to the poorhouse.
Disciplined trading comes from the head, not the heart. When you follow your instinct and go with your gut, it’s usually your feelings that are leading the way. Emotional trading tends to be more irrational — and more expensive. When XYZ is 10 points against you and you’re stricken with fear about taking a loss, it’s your gut, not your brain, that foolishly encourages to you add a few thousand shares and hope for a comeback. (more…)