--- title: "The Disposition Effect and How to Beat It | RupeeCase Learn" description: "The single most wealth-destructive pattern in equity investing, systematically selling winners and holding losers, explained and defeated." source_url: "https://www.rupeecase.com/learn/path-8/module-8-5-disposition-effect-and-how-to-beat-it" --- [Path 08 5 of 6](/learn/path-8/)The Disposition Effect and How to Beat It[Next 8.6](/learn/path-8/module-8-6-building-systems-that-protect-you-from-yourself) You own two stocks. Stock A, bought at ₹2,400, is now ₹2,800, up 16.7%. Stock B, bought at ₹600, is now ₹480, down 20%. You need cash. Which one do you sell? Most people sell A, the winner, and keep B, the loser. It feels like prudence: take the profit, give the other one time. It is the **disposition effect**, the tendency to sell winners too early and ride losers too long, and it is one of the best documented habits in retail investing. I want to be clear about why it matters. It is not that selling a winner is always wrong. It is that the decision is being made by the purchase price, a number that tells you nothing about what either stock does next. When I build rules for a portfolio, the first thing I take out is any reference to what we paid. **14.8%**of available gains were sold, against 9.8% of available losses Odean, 10,000 accounts, 1987 to 1993 **1.5x**how much more readily winners were sold than losers Odean, Journal of Finance, 1998 **3.4**percentage points by which winners sold beat losers kept over the next year Odean, 1998, returns over the market ## The economics of the disposition effect Hersh Shefrin and Meir Statman named the effect in 1985 in a paper titled "The Disposition to Sell Winners Too Early and Ride Losers Too Long". Terrance Odean tested it in 1998 on the trading records of 10,000 accounts at a large discount broker between 1987 and 1993. His measure is simple and you can apply it to yourself. * **PGR, proportion of gains realised:** on each day you sell something, count the holdings in profit that you sold, and divide by all holdings in profit, sold or not. * **PLR, proportion of losses realised:** the same for holdings at a loss. For the full year, Odean found a PGR of 0.148 and a PLR of 0.098. Investors were about 1.5 times as likely to sell a stock that was up as one that was down. The one exception was December, the last month of the US tax year, when PLR rose to 0.128 and PGR fell to 0.108. People sold losers when the tax benefit was right in front of them, and went back to the old habit the rest of the year. Winners get sold, losers get kept, except at tax time Share of available gains and losses that investors actually sold, Odean's 10,000 accounts. 1. Losses sold, December**0.128** 2. Losses sold, December**0.128** 3. Losses sold, December**0.128** 4. Losses sold, December**0.128** Odean (1998), Are Investors Reluctant to Realize Their Losses? Journal of Finance 53(5), Table I. US data, 1987 to 1993. India's tax year ends in March. Then he checked what happened next. Over the following year, the winners investors sold beat the losers they kept by about 3.4 percentage points, measured against the market. The habit was not just emotionally driven. It was also wrong on returns. The consequences add up in three places: * **You sell your best performers.** Stocks that have risen often have improving earnings. Selling them to lock in gains exits the businesses that are working. * **You keep your worst performers.** Stocks that have fallen often have a reason. Holding them to avoid booking the loss keeps capital tied up in businesses that are not working. * **You pay more tax than needed.** Selling winners realises gains now. Keeping losers delays losses you could have set off. It is close to the exact opposite of efficient tax management. [Odean (1998), Are Investors Reluctant to Realize Their Losses?](https://faculty.haas.berkeley.edu/odean/papers/disposition/disposition.html) ## The psychological drivers of the disposition effect The disposition effect is loss aversion (module 8.2) plus mental accounting, applied one holding at a time. 1. **Result**Gains get sold, losses get held, one decision at a time, for years. 2. **Result**Gains get sold, losses get held, one decision at a time, for years. 3. **Result**Gains get sold, losses get held, one decision at a time, for years. 4. **Result**Gains get sold, losses get held, one decision at a time, for years. Regret adds to it. Selling a loser means admitting a mistake. Selling a winner lets you feel smart. Neither feeling tells you anything about the next twelve months. ### The link to momentum The disposition effect may be one reason momentum works as a factor. If many investors sell winners early, good news gets into the price slowly, because the selling holds the price back. If they hold losers, bad news also gets in slowly. Prices then drift in the direction of the news for months. Grinblatt and Han showed in 2005 that stocks with more unrealised gains among their holders tend to have stronger subsequent returns, consistent with this story. Odean's own finding, that sold winners kept outperforming, matches Jegadeesh and Titman's 1993 evidence of momentum over horizons up to about a year. ## Worked example, the "would I buy it today" test Go back to the two stocks, with ₹5 lakh in each when you bought. A is now worth ₹5,83,333, B is worth ₹4,00,000. You need ₹1 lakh in February 2027, both were bought seven months earlier, and you have no other gains or losses this year. | | Sell ₹1 lakh of A (the winner) | Sell ₹1 lakh of B (the loser) | | --- | --- | --- | | Gain or loss realised | ₹14,286 short term gain | ₹25,000 short term loss | | Tax effect this year at 20% | ₹2,857 tax to pay | ₹0 tax; the ₹25,000 loss can be carried forward up to 8 years if you file on time | | Question that should decide it | If you held both in cash today, would you buy A at ₹2,800 and B at ₹480, in these sizes? | Result: the tax arithmetic favours selling the loser by ₹2,857 here, and the return evidence leans the same way on average. But the deciding question is the last row. If B's reason for being in the portfolio is intact and A's is not, sell A. The purchase price must not be the reason either way. What would you do? ### Stock A is up 16.7%, Stock B is down 20%. Both businesses look the same as when you bought them. You need ₹1 lakh. 1. **Sell neither, borrow instead**Avoiding the decision is the disposition effect in its purest form: no sale feels like no mistake. 2. **Sell neither, borrow instead**Avoiding the decision is the disposition effect in its purest form: no sale feels like no mistake. 3. **Sell neither, borrow instead**Avoiding the decision is the disposition effect in its purest form: no sale feels like no mistake. Illustrative numbers. Tax at the 20% short term rate on listed equity, before cess. Return evidence: Odean (1998), US data, an average not a promise. ## Tax loss harvesting, turning the disposition effect on its head Tax loss harvesting means deliberately booking losses to set them off against gains. It is the disposition effect turned around. The rules for listed equity in FY 2026-27, unchanged by the 2026 Budget and carried into the Income-tax Act, 2025: * **Short term** (held under 12 months): gains taxed at 20%. Short term losses can be set off against short term or long term gains. * **Long term** (12 months or more): gains above ₹1.25 lakh a year taxed at 12.5%. Long term losses can be set off only against long term gains. * **Carry forward:** unused capital losses can be carried forward for 8 years, if the return is filed by the due date. The habit to build: in February or early March, before the Indian tax year ends on 31 March, list every holding with an unrealised loss. Ask the "would I buy it today" question of each. Those that fail get sold, and the loss does work for you. The flip side is booking long term gains up to the ₹1.25 lakh exemption each year, which some investors do to reset their cost. Costs and the rules on how often you trade apply; Path 11 covers both in detail. **Myth**You never go broke booking a profit. **Fact**You can steadily underperform by booking profits. In Odean's 10,000 accounts, the winners investors sold beat the losers they kept by about 3.4 percentage points over the next year. [Income Tax Department, Help for individual taxpayers, returns and capital gains](https://www.incometax.gov.in/iec/foportal/help/individual/return-applicable-1) ## Common mistakes Mistake: setting a profit target from your buy price ("I will sell at 20% up") and no exit at all for losses. That is the disposition effect written down as a rule. If you write exits, write them on the reason for owning the stock, for winners and losers alike. * **Waiting for break even.** The price you paid is a fact about your past, not about the stock's future. * **Selling the best holding to fund a purchase.** Fund it from the weakest holding by today's test, not the most profitable one. * **Missing the March window.** Losses booked in April count for the next tax year. * **Harvesting a loss and forgetting the exposure.** If you still want the exposure, decide in advance how you will hold it after the sale. How this shows up in RupeeCase RupeeCase index algos rebalance on factor signals, not on gain or loss. A stock that has risen but still ranks well on momentum and quality stays. A stock that has fallen and ranks poorly goes, whatever the paper loss. The model does not know anyone's purchase price. Every model rebalance, with names in and out, is published on the [rebalance history](/rebalance/) page, and the strategies are on [strategies](/strategies/). Figures there are model, back tested. ## Questions readers ask Is there Indian evidence for the disposition effect?Several academic studies of Indian investors report the same pattern, and [SEBI](/learn/glossary#sebi)'s F&O data shows its fingerprint: in FY26 the average loss of loss makers, ₹1.47 lakh, was 21% larger than the average profit of profit makers, ₹1.22 lakh. Small gains taken quickly and losses left to run produce exactly that shape. Does this mean I should never book profits?No. Book profits when the reason for owning the stock has gone, when a position has grown too large for your rules, or when you rebalance to target weights. Just do not book them because the number is green. Is selling a loser and buying it back the same day allowed for tax?Indian law has no specific wash sale rule for listed shares today, but tax authorities can question transactions done only to avoid tax, and frequent buying and selling can change how your income is classified. Check with a tax professional before doing it at scale; Path 11 covers the rules. What does The Disposition Effect and How to Beat It cover?Study after study confirms it across every market: investors sell their winners too early and hold their losers too long. This is not random, it's completely predictable from the psychology of loss aversion. And it is one of the most expensive things an investor can do. It works through The economics of the disposition effect, The psychological drivers of the disposition effect, Worked example, the "would I buy it today" test, Tax loss harvesting, turning the disposition effect on its head and more. It is module 8.5 of Path 8, Behavioural Finance and Investor Psychology, about 9 minutes of reading, free. TTry it ## The Disposition Effect and How to Beat It, in numbers. Estimated drag from holding losers and selling winners early Your numbers, the module's formula, nothing stored. Calculator ### Loss Aversion Cost Estimator Rough estimate of CAGR drag if you cut winners early and let losers run. The drag is an input you choose; the result is an illustration. Portfolio CAGR if disciplined (%)Years investedAverage disposition drag (%)Starting capital (INR) AApply it on RupeeCase ## Allcap 50 stocks from the Nifty Total Market. Fortnightly rotation. An index built on the rules this path teaches, rules beat feel, no discretion, held stock by stock in your own demat. Risk band: Moderately High. [See the strategy](/strategies/allcap)[Sign up for RupeeCase](https://invest.rupeecase.com/signup?strategy=allcap) [CAGR44.7%Sharpe1.68Max DD−22.7%Minimum225000Model, back tested, as of 27 Apr 2026. Not client returns, not a promise.](/strategies/allcap) QQuick check ## 10 questions, 7 to pass. Pick an answer and the explanation appears. Your result stays on this device and counts towards the Path 08 certificate. CCheck yourself ## Path 08 so far. Your quick check results on this device, stop by stop. 1. [TPath test, 26 questionsNot yet](/learn/path-8/module-8-6-building-systems-that-protect-you-from-yourself#pathTestSection) 2. [TPath test, 26 questionsNot yet](/learn/path-8/module-8-6-building-systems-that-protect-you-from-yourself#pathTestSection) 3. [TPath test, 26 questionsNot yet](/learn/path-8/module-8-6-building-systems-that-protect-you-from-yourself#pathTestSection) 4. [TPath test, 26 questionsNot yet](/learn/path-8/module-8-6-building-systems-that-protect-you-from-yourself#pathTestSection) 5. [TPath test, 26 questionsNot yet](/learn/path-8/module-8-6-building-systems-that-protect-you-from-yourself#pathTestSection) 6. [TPath test, 26 questionsNot yet](/learn/path-8/module-8-6-building-systems-that-protect-you-from-yourself#pathTestSection) 7. [TPath test, 26 questionsNot yet](/learn/path-8/module-8-6-building-systems-that-protect-you-from-yourself#pathTestSection) Explore next ## Put the module to work. * [Blog noteSelling the wrong halfBehaviour, a short note](/blog/2026-08-14-morning-selling-the-wrong-half/) * [Blog noteThe disposition effectBehaviour, a short note](/blog/2026-07-27-evening-disposition-effect/) * [StrategyAllcap strategyNifty Total Market, 50 stocks, every 2 weeks](/strategies/allcap) * [Free module 8.6Building Systems That Protect You From Yourself9 min read](/learn/path-8/module-8-6-building-systems-that-protect-you-from-yourself) * [Learn guideBehavioural Finance and Business Analysis in IndiaA pillar guide across the paths](/learn/behaviour-and-business) Community ## Join my WhatsApp group. Scan the code, fillFill one short form, and join my WhatsApp group. Slides, sources, factsheets and the rebalance logs live there, and members join a daily Google Meet with me. [Sign up for RupeeCase](https://invest.rupeecase.com/signup) [Join the WhatsApp group](https://forms.gle/C6HMtM1Z2GfeocQV7) [One form, one group](https://forms.gle/C6HMtM1Z2GfeocQV7)Scan with your phone camera SSources ## Where the figures come from. 1. [Income Tax Department, Help for individual taxpayers](https://www.incometax.gov.in/iec/foportal/help/individual/return-applicable-1) 2. [Income Tax Department, Help for individual taxpayers](https://www.incometax.gov.in/iec/foportal/help/individual/return-applicable-1) 3. [Income Tax Department, Help for individual taxpayers](https://www.incometax.gov.in/iec/foportal/help/individual/return-applicable-1) 4. [Income Tax Department, Help for individual taxpayers](https://www.incometax.gov.in/iec/foportal/help/individual/return-applicable-1) 5. [Income Tax Department, Help for individual taxpayers](https://www.incometax.gov.in/iec/foportal/help/individual/return-applicable-1) 6. [Income Tax Department, Help for individual taxpayers](https://www.incometax.gov.in/iec/foportal/help/individual/return-applicable-1) GTerms ## 6 terms from this module. Disposition effectThe tendency to sell winning positions too early and hold losing positions too long. Named by Shefrin and Statman in 1985. PGRProportion of gains realised: winners sold divided by all winners held, counted on days you sell something. PLRProportion of losses realised: losers sold divided by all losers held, counted the same way. PGR above PLR signals a disposition effect. Tax loss harvestingBooking losses deliberately to set them off against gains in the same year, or carry them forward. Set offUsing a capital loss to reduce a taxable capital gain. Short term losses offset short or long term gains; long term losses offset only long term gains. MomentumThe tendency of recent winners to keep outperforming for months. The disposition effect is one proposed reason. [All 91 terms in the glossary](/learn/glossary) [From the podcast archiveEP37: Brent Cracked 105. Vol First. Pin Second. Expiry Is Not Going To Be EasyThe Tanmay Edge, 12 May 2026, graded 3/5](/podcast/episodes/2026-05-12)[Pillar guideBehaviour and Business13 modules across paths 8, 9](/learn/behaviour-and-business) Education only, not investment advice. RupeeCase is a technology platform operated by QC Alpha Technologies Pvt Ltd; it is not a fund, a PMS or a SEBI registered investment adviser. Model returns are back tested and not a promise of future returns. Figures carry the date they were checked.