The following video is from Tuesday's Investor Beat, in which host Chris Hill and analysts Jason Moser and Andy Cross dissect the hardest-hitting investing stories of the day.

In today's edition, the guys discuss another monster quarter for Costco (NASDAQ:COST) and also weigh in on an eye-opening Morningstar report on the success of's (NASDAQ:AMZN) Prime service. Those stories, plus today's four biggest market movers, and two stocks our analysts are going to be watching closely this week.

Andy Cross has no position in any stocks mentioned. Chris Hill and Jason Moser own shares of The Motley Fool recommends and owns shares of, Apple, and Costco Wholesale. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.