Shares of XM (NASDAQ:XMSR) and Sirius (NASDAQ:SIRI) have risen sharply over the last month. What does that mean for investors? And will Apple's (NASDAQ:AAPL) new iPod take a bite out of satellite radio? In this installment of "Fool Video," I ask Motley Fool contributor Tim Beyers.

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XM and Sirius have not been market beaters. Looking for stocks that have beaten the market? Try a free 30-day trial subscription to Motley Fool Hidden Gems. Neither Mac Greer nor Tim Beyers owns shares of any of the stocks discussed. The Fool has a disclosure policy.