The following video is part of our "Motley Fool Conversations" series, in which analyst Jason Moser and advisor Charly Travers discuss topics across the investing world.

That IPO shine has worn off and Stock Advisor analyst Jason Moser thinks Groupon has some tough days ahead. Charly Travers digs in and learns more about the concerns that have Jason making Groupon the "Dog of the Week."

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This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.