Nobel-winning research from Daniel Kahneman and Amos Tversky found something that sounds almost too simple to be important: losing ₹1,000 feels roughly twice as painful as gaining ₹1,000 feels good. Same amount, opposite direction, wildly unequal emotional weight. That single asymmetry, more than any specific bad fund choice, is probably the biggest thing quietly working against your returns.
Holding losers too long. A fund is down, and selling would mean admitting the loss — making it real and final. So instead of an honest reassessment ("would I buy this fund today, at this price, knowing what I know now?"), the investor waits to "get even" first. Sometimes that wait is years. Sometimes the fund never fully recovers, and the wait itself becomes the loss.
Selling winners too early. A fund is up, and every day it stays invested feels like risking a gain that already feels earned. So it gets sold — often far too early, well before its actual thesis has played out — purely to lock in a good feeling before it can turn into a bad one. The irony is that this instinct, applied consistently, means a portfolio systematically cuts its winners short while letting its losers run — the exact opposite of what actually builds wealth over time.
This isn't a knowledge problem. Plenty of investors who can explain loss aversion perfectly well in the abstract still feel the exact same pull when it's their own money on a red number. That's the nature of a cognitive bias — understanding it intellectually doesn't switch it off, any more than knowing an optical illusion is an illusion stops you from seeing it.
Write down your reason for owning something before you own it, not after. "I'm buying this for a 7-year goal, expecting real volatility along the way" is a sentence you can hold yourself to later, in a way "this looks good right now" never will be.
Judge the decision, not the outcome, on a fixed schedule. A fund down 15% isn't automatically a mistake — a genuinely sound long-term choice can be down 15% and still be exactly on track. Reviewing on a calendar (annually, say) instead of on every red or green day removes the emotional trigger from the equation almost entirely.
Notice when "I'll wait to get even" is the actual reason. If that's genuinely the only thing keeping you in a position, it's worth being honest that the decision is being driven by an old loss, not a current judgment about the investment's future.
None of this makes losses feel any less painful in the moment — that asymmetry is wired in too deep for any article to undo. But recognising it for what it is, in the moment it's happening, is the difference between a bias quietly running your portfolio and a bias you've at least caught in the act.
Atin Kumar Agrawal, Abundance Financial Services (ARN-251838), is an AMFI Registered Mutual Funds & SIF Distributor. This article is educational and general in nature — book a free consultation if a specific holding has you stuck between "sell" and "wait to get even."