The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper analyzes informed trading in acquiring firms through (stock) merger announcements. We show that pre-announcement abnormal option volumes in acquiring firms strongly increase ahead of a stock merger (by approximately 300%). Furthermore, we show that the direction of option trades (puts or calls) prior to an announcement can predict post-announcement stock returns. Our results also indicate...