Small shareholders are people who do not have control over the company's activities due to their small ownership. As a result, they are often abused by major shareholders and company managers. Therefore, supporting this group has become increasingly important in different countries. In this research, which has been done in a descriptive-analytical way, aims to identify the main ways of supporting small shareholders and institutional shareholders in the Iranian capital market. The findings of the research show that the right to profit, the right to buy shares, the right to the company's property, and the right to transfer shares, including the financial rights of institutional shareholders and small shareholders and the right to vote, the right to obtain information, the right to file a lawsuit, the right to remain a shareholder in the company. The right to request meetings, the right to invite, and the right to participate in the meeting are among the non-financial rights of institutional shareholders and retail shareholders in the capital market of Iran.