Trading Psychology · 4 min read
Talk to enough traders who’ve blown through accounts, and you’ll notice something: the stories all sound alike. The losses aren’t random — they follow a documented pattern, and recognizing that pattern in yourself is usually the first real step toward fixing it.
01Emotional position sizing
02Holding losers, cutting winners
03Trading to recover
01
They size positions emotionally, not systematically
After a losing streak, fear shrinks their position size; after a win, confidence inflates it. Position sizing ends up driven by mood instead of a fixed risk plan applied consistently, which means the account’s risk profile is constantly shifting even when the underlying strategy hasn’t changed at all.
02
They hold losers and cut winners — this has a name
In a landmark 1998 Journal of Finance study, economist Terrance Odean analyzed 10,000 brokerage accounts and found investors were far more likely to sell a winning position than a losing one — the disposition effect.
1.7×
More likely to sell a winner than a loser. Odean, 1998 — based on 10,000 brokerage accounts.
It’s the exact opposite of a rational strategy, and it shows up regardless of how sophisticated the trader believes they are, which is part of why it’s so persistent.
03
They trade to recover, not to execute a plan
Revenge trading after a loss is one of the most consistent account killers there is — it replaces strategy with emotion at the exact moment discipline matters most. The next trade taken purely to “win back” a loss is rarely evaluated on its own merits.
Conclusion
The behavior gap, not the strategy gap, is what separates profitable traders from unprofitable ones. Fix the behavior first — the strategy improvements tend to matter far less until that foundation is in place.
Fix the behavior first. The strategy comes second.
This article is for educational purposes only and does not constitute investment advice. Trading CFDs and other leveraged products carries a high level of risk and may not be suitable for all investors.
