On Thursday's edition of the Motley Fool's Investor Beat, host Chris Hill and Fool analysts David Hanson and Matt Koppenheffer take a hard-and-fast look at the market stories investors need to know.

In this segment, Matt and David discuss why they'll be keeping a close eye on shares of Ross Stores (ROST -0.35%) and Fannie Mae (FNMA -1.01%) this week.