Behavioral finance explains how psychological biases and emotions influence retail investors’ decisions, often leading to irrational behavior. Biases like overconfidence, herd mentality, and loss aversion can cause poor investment choices, such as excessive trading or holding losing assets. Understanding these factors helps investors make more rational decisions and improve their overall financial performance. The growing influence of social media, online trading apps, and easy access to market information has amplified these biases, making retail investors more reactive to trends and short-term market movements. Therefore, understanding behavioral finance not only helps in identifying these errors but also encourages better financial discipline, improved decision-making, and more stable long-term investment outcomes.