The effects of Mergers and Acquisitions on Stock prices

In this paper it is examined the emerging of mergers & acquisitions and the causes, forms, aims of them. in practise current acquisitions are selected from 2008- 2009 m&a’s that both of the companies are trading on the stock exchange of imkb. it was used “t test” to explore the effect of acquisition on the stock prices of acquirer company, then for the statistically significant different days it is researched for the acquirer, if it is possible to acquire abnormal return by acquisitions to imkb stock index. as a result it was found that it is not possibble to acquire abnormal return in 180 days run but it is possible to acquire ar in short run 5- 30 days.