RATINGS CHANGES

Abbott Laboratories (ABT) - Get Report was downgraded to hold at TheStreet Ratings. You can view the full analysis from the report here: ABT Ratings Report.

American Railcar Industries (ARII) - Get Report was upgraded to buy at TheStreet Ratings. You can view the full analysis from the report here: ARII Ratings Report.

Nucor (NUE) - Get Report was upgraded to buy from hold at Berenberg. $75 price target. This was a valuation call, given higher expected steel prices and volumes through 2018, said Berenberg.

Pandora (P) was upgraded to outperform from perform at Oppenheimer. $18 price target. There are potential synergies from a deal with SIRI, Oppenheimer said.

Select Comfort (SCSS) was downgraded to neutral from outperform at Wedbush. $22 price target. The company will likely struggle to meet near-term expectations, Wedbush said.

Steel Dynamics (STLD) - Get Report was upgraded to buy from hold at Berenberg. $44 price target. Estimates were also increased, given higher expected steel prices, said Berenberg.

United Continental (UAL) - Get Report was upgraded to buy from neutral at Bank of America/Merrill Lynch. $85 price target. The company has the highest margin expansion potential in an economic recovery, BofA/Merrill said.

This article was written by a staff member of TheStreet.