NEW YORK (TheStreet) -- TheStreet Ratings team reiterates its "buy" rating on Sirius XM with a ratings score of B-. The stock was down 2.17% to $3.38 at 3:29 p.m. TheStreet Ratings Team has this to say about their recommendation: "We rate SIRIUS XM HOLDINGS INC (SIRI) a BUY. This is driven by some important positives, which we believe should have a greater impact than any weaknesses, and should give investors a better performance opportunity than most stocks we cover.