Wal-Mart: Analysts' Upgrades, Downgrades

NEW YORK (TheStreet) -- CHANGE IN RATINGS

EMC (EMC) upgraded at Oppenheimer from Perform to Outperform. $22 price target. Checks show that the company is seeing strong demand.

Edwards Lifesciences (EW) downgraded at BMO from Outperform to Market Perform. Valuation call, based on a $59 price target.

FTI Consulting (FCN) downgraded at Oppenheimer from Outperform to Perform. Company is seeing a bigger decline in bankruptcy/restructuring businesses.

Juniper Networks (JNPR) upgraded at Piper Jaffray to Overweight from Neutral. Maintains $31 price target and 2010 EPS estimates of $1.22.

Marvell Technology (MRVL) rated new Neutral at Susquehanna Financial. Hard drive segment could weigh on near-term results, though the company has several potential catalysts for 2011.

Rovi (ROVI) rated new Overweight at Morgan Stanley. $46 price target. Company should benefit from surging cable consumption.

Spirit (SPR) Aerosystems upgraded at UBS from Neutral to Buy. $24 price target. Company should see higher production rates, especially from Boeing's 787.

Terex (TEX) downgraded at Keybanc from Buy to Hold. Company could be hurt by slower construction-related demand.

Verisign (VRSN) upgraded at Oppenheimer from Perform to Outperform. $33 price target. Company sold a lower-margin business and is seeing better trends with domain names.

STOCK COMMENTS / EPS CHANGES

Arrow Electronics (ARW) numbers cut at UBS through 2011. Macro uncertainty could weigh on demand. Buy rating and new $30 price target.

Avnet (AVT) estimates, target cut at UBS. Shares of AVT now seen reaching $33. Estimates also reduced, given mounting supply-chain risks. Buy rating.

Bucyrus (BUCY) estimates, target raised at Morgan Stanley. Shares of BUCY now seen reaching $80. Estimates also increased, as the company is likely to benefit from the new expected India truck order. Overweight rating.

Cliffs Natural (CLF) estimates increased at Morgan Stanley through 2012. Met coal acquisition should add to earnings. Equal-weight rating.

Emdeon (EM) target lowered at Goldman to $15. Company could be hurt by pricing pressures. Neutral rating.

Key Energy (KEG) estimates lowered at UBS through 2011. Business sale will cut into earnings. Buy rating and $13 price target.

Lockheed Martin (LMT) price target lower at Barclays to $81 from $86 as the defense market is at risk of declines. Maintain Equal Weight rating.