What it means
Loss aversion is the tendency to feel losses more strongly than equal gains. In trading it shows up as the disposition effect: taking small profits quickly and holding losing trades in the hope they come back.
The result is small average wins and large average losses, which can make a method lose money even with a high win rate.
Why traders use it
Closing a winner gives an immediate feeling of being right; closing a loser means admitting a mistake. Both pull in the wrong direction for expectancy.
Chart examples
Same trades, different exits
How to identify it objectively
- 1Average win in R is much smaller than average loss in R.
- 2Stops are moved further away during trades.
- 3Profit targets are moved closer during trades.
- 4Win rate is high but the equity curve falls.
Bullish use
- 1Set stop and target before entry and leave them.
- 2Use partial exits by rule, not by feeling.
Bearish use
- 1Moving a stop further away is the clearest warning sign.
What confirms it
- Journal shows exits at planned levels.
What invalidates it
- Exits that change with emotions during the trade.
How a hypothetical setup is built
Entry
From your strategy.
Stop
Fixed at entry; only moved in the direction that reduces risk.
Target
Fixed at entry, or managed by a written trailing rule.
A hypothetical illustration of how the concept is turned into a plan, not a recommendation. Practise it on a paper account first.
Related concepts
- Risk Management & StatisticsExpectancy
- Trading PsychologyRevenge Trading
- Trading PsychologyProcess vs Outcome
Historical testing
The drawing uses the same 12 trades (8 wins, 4 losses, 67% win rate) with two exit styles. Planned exits (+2R wins, −1R losses) end at +12R; disposition-style exits (+0.5R wins, −2R losses) end at −4R.
Limitations: when it fails
- Knowing the bias does not remove it; rules and automation (bracket orders) do more.
Knowledge check
Pick an answer to see the explanation. Nothing is saved.