In this video, health-care analyst David Williamson discusses Dendreon's recent third-quarter results. This video focuses on the good news in the report, as a number of positive trends have moved in Dendreon's favor. Watch and find out what made investors bid up shares as much as 30% intraday on Friday.

David Williamson owns shares of Johnson & Johnson and Dendreon. Follow him on Twitter, @MotleyDavidThe Motley Fool owns shares of Dendreon and Johnson & Johnson. Motley Fool newsletter services recommend Johnson & Johnson. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.