The main objective of this study is to determine the impact of informational asymmetry and its implications on share returns by relying on some measures of informational asymmetry, including the size of the Firm , the role that firms' announcements play on their dividend in the financial market, and the availability of information to help investors make rational decisions to eliminate The problem of information asymmetry, because these announcements send positive information to investors in the financial market, their content indicates that the management believes that the share is trading in the financial market at less than its true fair value .