The following video is part of our "Motley Fool Conversations" series in which Matt Argersinger, director of premium services, and analyst Paul Chi discuss topics across the investing world.

In today's edition, Paul and Matt look back at a recent buy in their Rising Star Portfolio. Paul decided to pull the trigger and buy ArcelorMittal thanks to its vertically integrated focus and attractive valuation relative to its peers.

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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.