However, a company's business and its shares are two different things. The stock's immense success in recent years raises fair questions about whether investors should continue to expect more of the same. Is Costco Wholesale a buy, sell, or hold heading into next year?

Costco will soon stop selling this popular item in most U.S. stores soon due to declining sales. Here's how Arizona shoppers will be affected.

Costco has a loyal following of customers who grieve the loss of their favorite products that are suddenly discontinued, like chocolate chips, or even entire sections of the store