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.

Costco  (NASDAQ:COST) reported a 39% increase in second-quarter earnings. In this installment of Investor Beat, our analysts talk about Costco's loyal membership and the future of the stock. The guys also weigh in on an eye-opening Morningstar report on the success of Amazon (NASDAQ:AMZN) Prime.

The relevant video segment can be found between 0:14 and 2:28.

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 and Costco Wholesale. Try any of our Foolish newsletter services free for 30 days. We Fools may not 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.