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

Shares of Costco hit an all-time high on Thursday after the retailer reported a 19% increase in third-quarter profits. Costco racked up strong sales in both its domestic and international stores. What's behind Costco's success? Will the retailer continue to be a big hit with investors? In this installment of Investor Beat, our analysts take a look into this story, as well as highlight the four biggest movers on Thursday's market and pick out two stocks that will be high on their watch list this week.