Despite abundant empirical evidence of informed trading ahead of major corporate events, no such evidence has been reported in the case of corporate spinoff (SP) announcements. This is surprising, as SP announcements are unexpected, and are also associated with a positive price jump in the...

Government agencies routinely allow pre-release access to information to accredited news agencies under embargo agreements. Using high frequency data, we find evidence consistent with informed trading during embargoes of the Federal Open Market Committee's scheduled announcements. The E-mini S&P...