How to make a simple valuation model. Motley Fool analysts Matt Koppenheffer and David Hanson as they check in on the latest Bitcoin news, play a round of "Fool in the Blank," and take a listener's question about buying preferred shares over common shares.

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.