Disposition Effect
The disposition effect is the tendency of investors to sell assets that have increased in value while keeping assets that have decreased in value. This behavior is driven by a desire to realize gains and avoid the realization of losses.
For retail traders, this often leads to a portfolio filled with losing positions and the missed opportunity to let winners run. This bias is particularly harmful in trending markets where large gains are possible.
To combat the disposition effect, traders should use objective criteria for both entries and exits, regardless of whether a position is currently profitable. Developing a system that forces the cutting of losses is key to mitigating this bias.
It is a common pitfall that prevents retail traders from achieving long-term profitability.