أثر الإعلان عن طرح أسهم للاكتتاب على اسعار أسهم الشركات داخل القطاع الصناعي في بورصة عمان

Abstract EN

The study concentrated on two issues.

Firstly ,the effect of advertising the issuing of new stocks on Amman Stock Exchange.

Secondly, does the advertisement affect the gained earnings by the companies that advertise as well as the companies that do not and is the resulted effect restricted to those who follow the advertisement policy?.

The methodology that has been adopted is the single index model.This methodology was employed to estimate usual earnings along with unusual one in accordance with the methodology used by Samuel Cecarello in 1992.

The researchers concluded that the advertising of issuing new stocks includes insight information in a way that has a weak and negative effect on the company’s earnings, The study also showed that the event study didn’t prove any information movement among the companies that advertise and those that don’t in the same sector.