When to Sell
The handful of genuinely good reasons to sell — and the many bad ones that tempt you.
Buying is easy; selling is where most investors sabotage themselves. The fix is to know, in advance, the short list of good reasons to sell — so you can ignore the long list of emotional, bad ones.
- The thesis broke — the reasons you bought are no longer true (falling profits, lost edgeA repeatable, structural reason your trades win over time., bad management). The single best reason to sell.
- You need the money — your goal has arrived (a planned purchase, retirement spending). Selling on schedule is a success, not a failure.
- RebalancingRestoring your target asset mix by trimming winners, topping up laggards. — the position has grown too large for your allocation, so you trim to control risk.
- A clearly better opportunity — rare, but sometimes capital is better deployed elsewhere (judge honestly, not on a whim).
Notice what’s NOT on the list: “it went up a lot,” “it went down a lot,” or “I’m bored/scared.” The good reasons are all about the business or your plan — never about the price move or your feelings. Selling a winner just because it rose caps your compoundingEarning returns on your returns — growth that accelerates over time.; selling a loser just because it fell locks in panic. Decisions tied to facts compound; decisions tied to emotions leak money.
Common mistakeSelling winners early to “lock in gains” while clinging to losers to “wait until they recover.” This is exactly backwards — it cuts your flowers and waters your weeds. Sell because the thesis or plan says so, not because of which way the price last moved.
ExampleA great compounder you bought at ₹100 hits ₹300. Tempted to “book profit,” you sell — and watch it reach ₹1,000 over the next years. The thesis was intact the whole time; the only thing that changed was the price, which was never a valid reason to sell.
Key takeawaySell for a short list of good reasons — broken thesis, you need the money, rebalancingRestoring your target asset mix by trimming winners, topping up laggards., a clearly better use of capital — never because the price rose, fell, or made you anxious. Tie selling to facts, not feelings.
FAQs
Should I sell if a stock has dropped a lot?
Only if the *thesis* has broken. A price drop with the business still on track is often a buying opportunity, not a sell signal. A price drop *because* the fundamentals deteriorated is a valid reason to exit. The drop itself isn’t the signal — the cause is.