In the following video, Fool financial analyst Matt Koppenheffer takes a question from a Fool reader, who asks, "Radian Group (NYSE:RDN) is unstoppable! I started buying at $2.40 and now my options are on fire. When is a good time to start selling puts? I've got a $20 handle but would love to hear from someone."

Matt Koppenheffer has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not 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.