
Greed is Good? Not according to the principles of investment psychology.
Did you think that you “got too greedy” after your winner turned into loser? If so, join the club. But if you dwell on that point, you are missing one of the keys to successful trading.
The trading gods are not out to get you. There is no rule that says you are only allowed to make a given amount of money on a given day. And the markets, for sure, do not know your current positions. Yes, I know, sometimes it feels that way though.
At its core, trading involves “Expected Value” –simply put, the combination of probabilities and potential payouts. EV = (Probabilities)(Payouts). When the EV is in your favor, then you have a definable edge. And great traders trade only when they have an edge. It has nothing to do with greed. It has everything to do with simple math.
Great trading is about following a consistent and objective decision-making process. Money is simply a function of what happens when a trader consistently makes trading decisions when he or she has a mathematical edge.
If you are questioning the validity and power of this concept, then look no further than the casino industry. The reason casinos are money machines is because they have the edge and gamblers don’t. If we play their games, over time, we are all guaranteed to become losers. Trading is not about gambling. It’s about edge and process. Great traders have little patience for greed. If you are still one of those people who think that “greed” is a reason great traders hold trades - then you clearly don’t understand what makes a successful trader.
Remember, great traders are made, not born.

An oil trader with 10 years of experience makes $1 million. A neurosurgeon with ten years of experience makes around $600K. A cancer researcher with 10 years experience makes about $150K. Who’s overpaid? It’s not a trick question, or, for that matter, one with a right answer. In an article in 



