Investigation the Relationship between Earnings Transparency and Abnormal Returns in Tehran Stock Exchange

Disclose of Complete، timeliness and with quality reporting، leads to increase transparency. On other side disclosure whit transparency can decrease information asymmetry. Also Disclose mid transparency financial statements decrease abnormal returns. Among of information that public by firms، earnings are material. Main of this study، explorer relation between earnings transparency and abnormal return. Therefore in the first step investigate relation between transparency and abnormal return and then add control variable. In order test of hypotheses have used Data from 92 firms that listed in Tehran stock exchange. Result show there is a significant and negative relation between earnings transparency and abnormal returns.