Sirius XM (SIRI) closed at $21.45 in the latest trading session, marking a +2.48% move from the prior day. The stock exceeded the S&P 500, which registered a gain of 1.56% for the day. Elsewhere, the Dow gained 1.29%, while the tech-heavy Nasdaq added 2.21%. Prior to today's trading, shares of the satellite radio company had lost 10.1% lagged the Consumer Discretionary sector's loss of 5.13% and the S&P 500's gain of 0.41%.Analysts and investors alike will be keeping a close eye on the performance of Sirius ...