Common trader mind traps: confirmation bias, loss aversion and overconfidence

The human brain uses shortcuts that help in daily life but cost money in financial markets. Psychologists call them cognitive biases. Recognising them is half the battle.

Loss aversion

Losing $100 hurts about twice as much as winning $100 feels good. In the market that means holding losers until they "come back" and closing winners early so the profit does not disappear: exactly the opposite of what we should do.

Confirmation bias

Once you have decided gold is going up, you notice only the news and analysis that agree. To counter it, always write the opposite scenario and ask: "What would prove me wrong?"

Overconfidence

After a few winning trades we feel we have the market figured out. Size grows and rules are dropped, and one big loss wipes out the gains.

Anchoring

The mind latches onto a number, such as the entry price: "I won't close until it gets back to my entry." The market does not know or care where you got in.

Recency bias

We overweight the last few trades. Three losses in a row can make us abandon a good strategy that worked over hundreds of trades.

The gambler's fallacy

"Five red candles in a row, so green must be next." Candles are not fully independent, but the market does not owe us a reversal either.

How to fight them

1. Have a written trading plan and take only its setups.
2. Keep a journal so you judge decisions with data, not feelings.
3. Judge results over at least 30 to 50 trades, not the last few.
4. Define your invalidation before you enter.

In the next article we look at how a trading journal exposes these biases.

📗 This article summarises ideas from our book "The Trader's Mindset", 47 chapters on trading psychology. To get the book, message us on Telegram @fibonacci_chart.

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Trading financial markets involves risk. This article is educational and is not investment advice.