ForecastingStocks

Herding is the instinct to do what everyone else is doing. It is deeply human — for most of history, following the group kept you alive — but in markets it is a reliable way to buy tops and sell bottoms.

The market example

A stock or a coin has gone up 300%. The news is everywhere, friends are bragging about gains, and the fear of being the only one left out becomes overwhelming. You buy — near the top, with the crowd, at the moment of maximum optimism. When the move reverses, the same herd that drove it up now stampedes for the exit, and you sell near the bottom in the panic.

This is the mechanism behind every bubble and crash in history, from tulips to dot-coms to crypto manias. The herd is not stupid in each individual moment; each person is rationally following everyone else. Collectively, it produces wild overshoots.

The uncomfortable truth

By the time a trade is obvious to everyone, the easy money is gone and the risk is highest. The crowd is most confident at exactly the wrong times. As the saying goes, you want to be greedy when others are fearful and fearful when others are greedy — which is psychologically the hardest thing to do, because it means standing alone.

How to counter it

Have a plan independent of the crowd's mood. Your entry and exit come from your analysis, not from how loud the noise is.
Treat extreme consensus as a warning. When everyone agrees and the story is on every front page, ask who is left to buy.
Use sentiment as a contrarian gauge, not a follow signal — extremes of fear and greed often mark turning points.
Never trade on FOMO — covered in depth later, but the rule is simple: missing a move costs you nothing; chasing one can cost you a lot.