# Disposition Effect

> The disposition effect is the habit of selling winning trades too early and holding losers too long. Learn the research, what it costs and how to reverse it.

Source: https://learn.tradelabsai.com/psychology/disposition-effect/  
Track: Trading Psychology · Level: Intermediate · Updated: 2026-10-03  
Publisher: TradeLabs AI (https://tradelabsai.com). Education, not financial advice.  
Cite as: TradeLabs Learn, "Disposition Effect", https://learn.tradelabsai.com/psychology/disposition-effect/

The disposition effect is the tendency to sell investments that have gone up too quickly and hold investments that have gone down for too long. Economists Hersh Shefrin and Meir Statman named it in 1985. It is one of the most consistent findings in studies of how individuals actually trade, and it runs directly against the old trading advice to "cut your losses and let your profits run".

## The evidence

In a widely cited 1998 study of about 10,000 brokerage accounts, Terrance Odean found that investors were significantly more likely to sell a stock that was up than one that was down. Even more telling, the winners they sold tended to keep outperforming over the following year, while the losers they held tended to keep underperforming. The investors were systematically selling the wrong stocks.

## Why it happens

| Driver | Explanation |
|---|---|
| Loss aversion | Realising a loss is painful, so people avoid it. See [Loss Aversion](https://learn.tradelabsai.com/psychology/loss-aversion/) |
| Mental accounting | Each position is judged separately against its purchase price |
| Pride and regret | Selling a winner feels like being right; selling a loser feels like admitting a mistake |
| Hope | "It will come back" keeps losers in the portfolio |
| Anchoring | The purchase price becomes the reference point for every decision. See [Anchoring](https://learn.tradelabsai.com/psychology/anchoring/) |

## What it does to results

**Example: Small wins, big losses**
Over 20 trades, a trader exits winners as soon as they show $150 profit and holds losers until they "come back", which often means larger losses. Results: 12 winners at about $150 each (+$1,800) and 8 losers averaging $400 (minus $3,200). Despite a 60% win rate, the trader lost $1,400. The disposition effect turned a decent hit rate into a losing record.

The pattern produces a high win rate with low average wins and large average losses, a combination that looks good in conversation and bad on statements. See [Expectancy](https://learn.tradelabsai.com/risk/expectancy/) and [Win Rate and Payoff Ratio](https://learn.tradelabsai.com/portfolio/win-rate-and-payoff-ratio/).

## Reversing the disposition effect

1. **Decide exits before entry.** Place a stop and a profit plan with the entry, ideally as a bracket order. See [Bracket Orders](https://learn.tradelabsai.com/orders/bracket-orders/).
2. **Let the plan, not the purchase price, decide.** Ask "would I buy this position today at this price?" If not, why hold it?
3. **Use trailing stops for winners** so you exit on a meaningful reversal rather than the first profit. See [Trailing Stop Orders](https://learn.tradelabsai.com/orders/trailing-stop-orders/).
4. **Never move stops further away.** See [Stop Loss Strategies](https://learn.tradelabsai.com/risk/stop-loss-strategies/).
5. **Track average win and average loss** in your journal. If average losses exceed planned risk, or average wins are much smaller than planned targets, the disposition effect may be at work. See [Trading Journal](https://learn.tradelabsai.com/start-here/trading-journal/).
6. **Review MAE and MFE** to see whether you exit winners well before their potential. See [MAE and MFE](https://learn.tradelabsai.com/risk/mae-and-mfe/).

## Taxes and the disposition effect

In many countries, realising losses can reduce taxes, which gives a financial reason to sell losers rather than hold them. Yet many investors still hold losers, showing how strong the emotional pull is. See [Tax-Loss Harvesting](https://learn.tradelabsai.com/industry/tax-loss-harvesting/).

## Common mistakes

- **Treating the purchase price as meaningful** to future price movement.
- **Calling a losing trade a long term investment** to avoid selling it.
- **Taking quick profits** to feel successful.

## Frequently asked questions

### What is the disposition effect?

The tendency to sell winning investments too soon and hold losing investments too long.

### Why is the disposition effect harmful?

It shrinks average wins and enlarges average losses, which can make a strategy unprofitable even with a high win rate.

### How do I avoid the disposition effect?

Set stops and profit plans before entering, use trailing stops for winners, never move stops further away and track your average win versus loss.

Next, learn how recent events distort judgement in [Recency Bias](https://learn.tradelabsai.com/psychology/recency-bias/).

## Sources

- Wikipedia, [Disposition effect](https://en.wikipedia.org/wiki/Disposition_effect)

## Continue learning

- Next lesson: [Recency Bias](https://learn.tradelabsai.com/psychology/recency-bias/)
- Previous lesson: [Loss Aversion](https://learn.tradelabsai.com/psychology/loss-aversion/)
- Related: [Loss Aversion](https://learn.tradelabsai.com/psychology/loss-aversion/): Loss aversion means losses feel about twice as painful as equal gains feel good. Learn the research, how it damages trading and practical ways to counter it.
- Related: [Exit Mechanics](https://learn.tradelabsai.com/position-management/exit-mechanics/): Exits decide most of your results. Learn the main exit types: stops, targets, trailing stops, time exits and signal exits, and how to combine them in a plan.
- Related: [Sunk Cost Fallacy](https://learn.tradelabsai.com/psychology/sunk-cost-fallacy/): The sunk cost fallacy keeps traders in bad positions because of money already lost. Learn how it works, how it differs from loss aversion and how to break it.
- Related: [Anchoring](https://learn.tradelabsai.com/psychology/anchoring/): Anchoring makes traders rely too heavily on one reference number, like an entry price or an old high. Learn how it distorts decisions and how to adjust properly.
- Related: [Trading Journal](https://learn.tradelabsai.com/start-here/trading-journal/): A trading journal records every trade so you can find what works and what keeps costing you. Learn what to log, a template and how to review it.