Costco (COST 0.17%) was down today with news that the company missed both on earnings and revenue. In the following video, Motley Fool analyst Jason Moser believes that this company still is not necessarily in trouble. The company has impressive customer loyalty and still has opportunities for growth both internationally and online.

So is Costco a buy today, even with today's pullback? Jason believes this stock is still fairly expensive and would have liked to see a slightly larger pullback on today's news. However because of the retention rates and quality management, the market has always given this stock a bit of a premium. Jason believes this is a stock that belongs on everyone's watch list and that it's definitely worth a deeper look.