The short answer
Two emotions drive most losing trading decisions: fear and greed. Fear makes traders cut winners too early, hesitate on valid setups, and panic-sell; the fear of missing out makes them chase. Greed makes them hold winners too long, oversize when confident, and refuse to take a loss. You cannot delete these emotions — but by recognising them in the moment and letting your plan, not your feelings, decide, you remove most of what sabotages traders.
The two emotions
Strip away the jargon and most trading mistakes come from two feelings. Fear — of losing money, of being wrong, of missing out. And greed — the pull for more profit, faster, bigger. They are natural and universal; the problem is that in trading they push you to do exactly the wrong thing at exactly the wrong time.
How fear costs you
Fear shows up in several damaging ways. It makes you cut winners too early — grabbing a small profit because you are scared of giving it back, which starves your winners and wrecks your risk-reward. It makes you hesitate on valid setups, missing the trades your plan called for. And in a losing position it can trigger panic — either freezing or capitulating at the worst moment.
A special case is FOMO, the fear of missing out, which drives chasing and overtrading — covered in its own guide.
How greed costs you
Greed is fear's mirror image. It makes you hold winners too long, ignoring your target in the hope of more, until the move reverses and the profit evaporates. It makes you oversize when you feel confident — the exact moment overconfidence is most dangerous. And it makes you refuse to take a loss, moving your stop or adding to a loser because admitting the trade is wrong feels like failure.
Greed feels like ambition, but in trading it is usually just risk you did not plan for.
Fear, greed and the crowd
These emotions do not just affect you — they move markets. Waves of collective fear and greed drive the booms and panics you see on charts, which is why sentiment gauges and safe-haven flows exist. The crowd buys tops in greed and sells bottoms in fear. Recognising the emotion in yourself is the first step to not being swept along with it.
How to manage them
You cannot switch these emotions off, but you can stop them from making your decisions. The tools are the same ones that build discipline: decide in advance (a plan written when you are calm removes in-the-moment emotion from the entry, exit and size); size small (smaller positions keep both fear and greed quieter); and name the feeling — simply noticing "this is greed talking" or "this is fear" restores enough distance to follow your rules.
A journal that records your emotional state helps you spot your personal patterns. Master these two emotions and most of trading psychology is handled. This is education, not advice.
Frequently Asked Questions
What are the two emotions that hurt traders most?
Fear and greed. Fear makes traders cut winners early, hesitate, panic and chase (FOMO). Greed makes them hold winners too long, oversize when confident, and refuse to take losses. Almost every bad decision traces to one of them.
How does fear cause losing trades?
It makes you cut winners too early to protect a small profit, hesitate on valid setups, and panic in losing positions. The fear of missing out also drives chasing and overtrading, which are covered in a dedicated guide.
How does greed cause losing trades?
It makes you hold winners past your target until they reverse, oversize when you feel confident (exactly when overconfidence is riskiest), and refuse to take a loss by moving stops or adding to losers. Greed is usually unplanned risk.
Can you get rid of fear and greed in trading?
No, and trying to is futile. You manage them by deciding in advance with a written plan, sizing small enough that emotions stay quiet, and naming the feeling in the moment so your rules — not your emotions — make the decision.
Do fear and greed move the market itself?
Yes. Collective fear and greed drive market booms and panics, with crowds buying tops in greed and selling bottoms in fear. Recognising the emotion in yourself is the first step to not being swept along with the crowd.