Trading psychology: five biases that cost traders money

Markets are made of people, and people are not perfectly rational. Psychologists have described biases that show up very clearly in trading.

1. Loss aversion

Losses feel stronger than gains of the same size. Traders therefore hold losing positions too long, hoping to "get back to zero", and sell winners too early.

2. Fear of missing out (FOMO)

A coin rises fast, social media is excited, and buying feels urgent. Entering after a big move often means buying near a short-term top, with no plan for the exit.

3. Confirmation bias

We look for information that agrees with what we already believe and ignore the rest. A trader who is long reads only bullish opinions.

4. Overconfidence

A few wins in a row can feel like skill, leading to bigger positions and more risk exactly when luck may turn.

5. The sunk-cost trap

"I have already lost so much that I cannot sell now." Past losses are gone either way; the only question is whether the position still makes sense today.

Habits that help

• Write the plan before the trade: entry, exit if wrong, target.
• Fix risk per trade so that one decision cannot do serious damage.
• Keep a journal and review it — see Keeping a trading journal.
• Take breaks after a big win or loss.
• Limit noise: fewer screens and fewer opinions often mean better decisions.

This is general education. XFasil does not provide trading operations or investment advice; the Spot and Futures screens show market data only.