Key idea
FOMO's twin. When markets crash and fear peaks, the urge to sell and 'stop the bleeding' is strongest, and it locks in the loss.
If FOMO makes you buy high, panic makes you sell low. When markets fall hard and your portfolio is deep in the red, every instinct screams to sell and end the pain. Acting on that instinct turns a temporary, paper loss into a permanent, real one.
The trap, step by step
Prices fall. Fear rises. You sell to feel safe. Then, as markets almost always eventually do, they recover, but you are no longer invested to benefit. You have crystallised the loss and missed the rebound, the worst possible outcome, driven entirely by emotion at the moment of maximum fear.
The paper loss becomes real only when you sell. A fall you sit through is a number on a screen that recovers. A fall you sell into is money gone for good.
Why it is so hard, and how to resist
The discipline to hold, or even keep investing, during a crash is the rarest and most rewarding investor skill. It helps to have decided in advance that falls are normal (they are), to keep an emergency fund so you are never forced to sell, and to avoid watching the portfolio daily during turmoil.
The investors who do best in a crash are usually those who do nothing, or who keep their SIPs running, buying more units cheaply. Panic-selling is the single most expensive mistake an investor can make.
Finished reading?
Marking this complete counts today, and your streak becomes day 1.