herding behavior

Syllable breakdown

Dictionary meaning

the tendency for investors and financial market participants to follow and copy the behaviour of a larger group rather than making independent decisions based on their own analysis, producing correlated investment decisions that can amplify market trends and contribute to bubbles and crashes; herding arises from informational cascades — investors rationally infer that others have information they lack and therefore mimic the crowd — from reputational concerns — fund managers who hold contrarian positions risk career damage if those positions lose money — and from the psychological comfort of conformity; institutional herding — when fund managers herd into the same stocks or sectors — is particularly well-documented and contributes to momentum effects in asset prices; herding by retail investors is associated with speculative bubbles in technology stocks, housing, and cryptocurrency; during market crises herding can cause self-reinforcing selling spirals as investors see others sell and rush to exit simultaneously, amplifying price falls beyond what fundamentals justify

Examples

• Herding behavior drove retail investors to pile into meme stocks in early 2021, driving prices to levels disconnected from fundamentals.
• Fund managers exhibit herding behavior by moving into the same growth stocks simultaneously, amplifying momentum and increasing crash risk.

behavior (American) / behaviour (British)