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.