The following story is from Thursday's Investor Beat, in which host Chris Hill, and Motley Fool analysts David Hanson and Matt Koppenheffer, dissect the hardest-hitting investing stories of the day.

In this segment, Matt and David explain why they're keeping a close watch on shares of Activision Blizzard (NASDAQ: ATVI) and AIG (NYSE:AIG).

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.