NEW YORK ( TheStreet) -- CHANGE IN RATINGS Akamai ( AKAM) was upgraded at DA Davidson to buy from neutral. $62 price target. Company is leveraged to growing demand for fast delivery of digital content. Alliant Techsystems ( ATK) upgraded at RBC Capital to outperform from sector perform. $122 price target. Sporting business should drive future growth, RBC Capital said. Best Buy ( BBY) was upgraded at Oppenheimer to outperform. $50 price target. Turnaround story still has legs, Oppenheimer said. Cliffs Natural ( CLF) was upgraded at Cowen to market perform from underperform. $20 price target. Investor sentiment is negative, but the company has potential catalysts on the horizon, Cowen said. Clorox ( CLX) was downgraded at Morgan Stanley to underweight from equal-weight. Slowing U.S. consumer spending and increased competitive environment, Morgan Stanley said. Valuation call, based on an $83 price target. CSX) was downgraded at RBC Capital to sector perform from outperform. Company is seeing negative trends in a number of key areas. CSX was downgraded at BMO Capital to market perform from outperform. Valuation call, BMO Capital said. $28 price target. Covanta ( CVA) downgraded at Wedbush to neutral from outperform. $23 price target. Company has limited intermediate-term earnings upside potential, Wedbush said. Enerplus ( ERF) was upgraded at RBC Capital to outperform from sector perform. Company has strong operating momentum and trades at an attractive valuation, RBC Capital said. IBM ( IBM) was downgraded at UBS to neutral from buy. Estimates were lowered as weak sales in growth markets dragged both the top and bottom line. $186 price target. NSC) was downgraded at RBC Capital to sector perform from outperform. $89 price target. Have concerns about near-term freight rate trends and continued coal concerns, RBC Capital said. Packaging Corp. ( PKG) upgraded at Wells Fargo to outperform from market perform. Estimates were also increased, as the Boise acquisition should add to earnings, Wells Fargo said. Peregrine Semiconductor ( PSMI) was downgraded to sell at TheStreet Ratings. Select Comfort ( SCSS) was downgraded at Keybanc to hold from buy. Company posted lower-than-expected quarterly results, Keybanc said. Estimates were also cut.
SolarCity ( SCTY) was initiated with an overweight rating at J.P. Morgan. $68 price target. Distributed solar is a very early-stage growth opportunity, J.P. Morgan said. Sigma-Aldrich ( SIAL) was initiated with an underweight rating at Morgan Stanley. $82 price target. Company's recovery efforts will likely disappoint, Morgan Stanley said. SMG) was upgraded at J.P. Morgan to overweight from neutral. $65 price target. Low raw material costs should boost bottom line, J.P. Morgan said. Stanley Black & Decker ( SWK) was downgraded at Morgan Stanley to equal-weight from overweight. Guidance into 2014 lowered as core revenue remains depressed, Morgan Stanley said. $83 price target Stanley Black & Decker was downgraded at Credit Suisse to neutral from outperform. $71 price target. Estimates also cut, given challenges in security and slower do-it-yourself demand in North America, Credit Suisse said. Xilinx ( XLNX) was downgraded at Piper Jaffray to neutral from overweight. $47 price target. Valuation call, as momentum is slowing, Piper Jaffray said. Xilinx was upgraded at Robert Baird to outperform from neutral. $56 price target. Expect growth to reaccelerate in the March quarter, Baird said.
IBM ( IBM) estimates, price target were cut at BMO Capital. Estimates were cut through 2014. Company is seeing slower growth, BMO Capital said. Market Perform rating and new $195 price target. Merck ( MRK) estimates, price target were lowered at BMO Capital. Shares are now seen reaching $48. Estimates also were cut, given lower expected Januvia growth, BMO Capital said. Market Perform rating. SanDisk ( SNDK) estimates, price target were raised at Jefferies. Company has benefited from secular shift toward SSD, Jefferies said. Buy rating and new $75 price target. United Rental ( URI) estimates, price target were increased at UBS. Effective operational execution lends confidence to continued growth, UBS said. Buy rating and new $71 price target. Yahoo! ( YHOO) estimates, price target were increased at BMO Capital. Estimates were raised through 2014. Company is keeping a higher stake in Alibaba, BMO Capital said. Market Perform rating and new $32 price target. >To submit a news tip, email: firstname.lastname@example.org. Follow TheStreet on Twitter and become a fan on Facebook.