Investing University - 1294584
Sunk cost trap refers to a tendency for people to irrationally follow through on an activity that is not meeting their expectations. This is because of the time and/or money they have already invested. In market many investors are reluctant to admit, even to themselves, that they have made a bad investment.
Due to behavioral trap most people fall into it. Investor need to keep them-self updated about their investment with new data. And keep challenging their rational of investment to avoid falling into Sunk-Cost trap.