Fear and greed in trading: what loss aversion does to your exits

The research behind it

“Losses loom larger than gains.”

— Daniel Kahneman & Amos Tversky, Prospect Theory; see Thinking, Fast and Slow · Share this quote

Kahneman and Tversky found that a loss feels roughly twice as bad as an equal gain feels good. In trading, that produces two classic errors that look like opposites but have the same cause.

Fear’s fingerprints

• Cutting winners early — locking in the good feeling before it can disappear. Shows up as low exit efficiency on winning trades.
• Hesitating after a loss — skipping valid setups. Shows up as missed trades in your plan versus trades taken.

Greed’s fingerprints

• FOMO entries — chasing a move without your setup. Shows up as “no setup” trades with worse results.
• Holding losers — refusing to realise a loss in the hope it comes back. Shows up as losses bigger than your planned 1R.
• Sizing up when hot — after a few winners. Shows up as larger size after winning streaks.

“Don’t focus on making money; focus on protecting what you have.”

— Paul Tudor Jones, widely attributed · Share this quote

Rules that counter both

1. Stop and target set at entry. Decisions made calm, before the trade, beat decisions made under pressure.
2. Fixed size per trade. Same risk whether you’re up or down on the day — see the position size calculator.
3. Partial exits by plan, not by feeling, if you struggle to hold winners.
4. Setup checklist before every entry. No checklist, no trade.

Check it in your data

Compare your average loss to your planned 1R, your exit efficiency on winners, and results of trades with and without a setup tag. If losses run past 1R or winners exit early, you have found your fear or greed — in dollars, which is far more motivating than a feeling.

FAQ

What is loss aversion in trading?

The tendency to feel losses more strongly than equal gains, which leads traders to hold losers too long and cut winners too early.

How do I stop cutting my winners early?

Set your target at entry, consider planned partial exits, and track exit efficiency so you can see what early exits cost.