In Tuesday's installment of Investor Beat, host Mark Reeth, and Motley Fool analysts Jason Moser and Tim Hanson, dissect the hardest-hitting investing stories of the day.

J.C. Penney is in the investing spotlight, once again, and it's for all the wrong reasons. In our lead story on Investor Beat, Tim and Jason examine the company's earnings, how much of the poor results were new CEO Mike Ullman's fault, and if the company can get things right in time for back-to-school season.

Also, our analysts take a look at four stocks that made big moves Tuesday. Home Depot reported strong numbers across the board. Best Buy is up after profits beat expectations, but the good times can't last forever. Urban Outfitters is doing well, but where will the company be a year from now? And Barnes & Noble is way down after its founder decided not to buy the company's retail stores.

Finally, Tim and Jason explain why they're keeping a close watch on shares of Dollar Tree and PetSmart.