<p>This study aims to determine the comparison of risk tolerance, overconfidence and herding behavior between male and female investors in Aceh. The primary data used in this study was collected using questionnaires. The population in this study are investors in Aceh Province, Indonesia with a total sample of 386 respondents. The analytical method used was the Mann Whitney U test. The results show that: 1) There is a difference in risk tolerance between male and female investors in Aceh, 2) There is no difference in overconfidence between male and female investors in Aceh 3) There is a difference herding behavior between male and female investors in Aceh. Also, advances in information technology, education level, knowledge make gender differences no longer a limitation for investors to feel more confident and brave in making investment decisions. This study is expected to enrich the financial management literature on investor behavior, increase the number of capital market investors in Aceh through an investor behavior approach, and a reference for implementing a long-term strategy in determining the capital market regulator in Aceh. <strong></strong></p><p><strong> </strong></p>