Author = Khakpour, Hossein

A Study the Effects of Free Float Change on Stock Return (Tehran Stock Exchange)

Volume 11, Issue 43, Winter 2012, Pages 143-166

Ahmad Ahmadpoor, Hossein Khakpour

Abstract This study is an attempt to investigate the impact of free float announcement on stock return behavior of the companies accepted in Tehran Stock Exchange. So we collect free float announcement in twenty quarters period between 2004 and 2009. The researches contain stocks behavior in time window between ten days before and after announcement changes. The most important finding of the study revealed that, the Abnormal Return and Cumulative Abnormal Return statistically  differ significantly before and after of free float announcement.