SiriusXM Jumped Today -- Is This Warren Buffett Stock a Buy?

SiriusXM (SIRI 5.82%) stock jumped in Thursday's trading after the company published better-than-expected fourth-quarter results. The satellite radio specialist's share price closed out the daily session up 5.8% amid the backdrop of a 0.5% gain for the S&P 500 index and a 0.2% gain for the Nasdaq Composite index.Sirius published its Q4 results before the market opened this morning, and reported sales and earnings that beat Wall Street's estimates. The company posted earnings per share (EPS) of $0.83 on sale ...