Stop Gambling! House Money Effect in Trading & How to Avoid It
The House Money Effect is a psychological bias where people treat money they’ve recently won (or earned easily) as less valuable than their original capital. This leads to riskier decisions like a gambler taking bigger bets after a hot streak.
This cognitive bias, borrowed from casino psychology, transforms how traders perceive and handle risk after periods of success. When trading with profits, many investors unconsciously shift from their carefully planned strategies to more aggressive, often reckless approaches. The logic seems sound on the surface – you’re playing with “free” money, after all. Still, this mental accounting trick has derailed countless trading careers, turning winning streaks into devastating losses overnight.
So, how does this bias impact stock traders?
