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Trading Psychologie

The Psychology Behind Letting Losses Run

Why is it so difficult to accept a loss? We dive into the psychology behind loss aversion and how to overcome it.

T
TradingUnie
17 June 2026
5 min read
#verlies laten lopen#trading psychologie#verliesaversie#stop loss verwijderen#trading verlies accepteren#trading psychologie nederland#verlies aversie

The Psychology Behind Letting Losses Run

Everyone knows that you need to accept your losses. Yet almost all beginners do the opposite: they let losses run. Why?

Loss Aversion

The Nobel Prize-winning theory by Kahneman and Tversky shows that people feel a loss about twice as intensely as an equivalent gain.

A loss of €100 feels twice as painful as the joy of a €100 win. This is hardwired in our brains.

The Hopelessness Spiral

When a trade goes against you, this happens:

  1. You see red — discomfort
  2. You think: 'Maybe it will come back' — hope
  3. It continues to go against you — fear
  4. You remove your stop loss — panic
  5. The loss is now too big to accept — paralysis

At this point, the trade is no longer rational. You are hostage to your own position.

The Solution: Pre-Acceptance of Loss

The key is to accept the loss before you open the trade:

  • 'I risk €X on this trade. If it loses, that's fine.'
  • 'My stop loss is set at Y. If it reaches that point, I'm out.'

If you truly believe this in advance, exiting at your stop loss is not a painful decision — it is the execution of your plan.

Techniques to Accept Loss

1. Reduce Your Positions

Smaller positions = less emotion = easier to accept that you were wrong.

2. Use Automatic Stops

Set a hard stop loss in your platform, not just in your head. This way, the market cannot tempt you to remove it.

3. Treat Each Trade as a Hypothesis

You formulate a hypothesis (the market will go up). You test it with a small investment. If the market disproves your hypothesis, you accept it and move on.

4. Set a Maximum

If you lose X% in a day, you stop. No discussion. Tomorrow is another day.

Conclusion

Letting losses run is not a strategy — it is a psychological trap. The only way out is structural: small positions, hard stops, and pre-accepted losses.

You will always experience losses in trading. The question is whether you keep them small.

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