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CHANGE IN RATINGS

American Electric

(AEP) - Get Report

upgraded at Jefferies from Hold to Buy. Valuation call, even though first quarter earnings missed estimates. $38.50 price target.

Athenahealth

(ATHN) - Get Report

downgraded at Leerink from Outperform to Market Perform. Company lost key customers and failed to add new providers. Estimates also lowered.

Baldor Electric

( BEZ) downgraded at Longbow from Buy to Neutral. Stock is pricing in the company's strong market share and operating leverage.

Commscope

(CTV) - Get Report

upgraded at Baird from Neutral to Outperform. Company had a strong quarter, given better enterprise spending and wireless CapEx. $39 price target.

Goldman Sachs

(GS) - Get Report

downgraded at BofA/Merrill to Neutral from Buy on reports that federal prosecutors have opened an investigation of GS in connection with its trading activities, raising the possibility of criminal changes. $160 price target.

Halliburton

(HAL) - Get Report

downgraded at FBR from Outperform to Market Perform. $35 price target. Gulf of Mexico tragedy could hang over the stock.

Harman

(HAR)

upgraded at Baird from Underperform to Neutral. Valuation call, based on a $45 price target. Company had a good quarter and guidance could still prove to be conservative.

ITC

(ITC)

downgraded at Deutsche from Buy to Hold. Valuation call, as the company has few near-term catalysts. $58 price target.

Jarden

(JAH)

downgraded at Goldman to Neutral. Estimates also cut, as the company is facing margin headwinds. $38 price target.

Microstrategy

(MSTR) - Get Report

downgraded at FBR from Outperform to Market Perform. Expenses are running above expectations. $90 price target.

O'Reilly Automotive

(ORLY) - Get Report

downgraded at FBR from Outperform to Market Perform. Company is facing difficult comps and may struggle to deliver continued earnings upside.

PPL

(PPL) - Get Report

downgraded at UBS from Buy to Neutral. Estimates also lowered, as the Kentucky utility deal should dilute earnings. $26 price target.

Transocean

(RIG) - Get Report

downgraded at FBR from Outperform to Market Perform. $87 price target. Deepwater Horizon catastrophe could weigh on the name.

Thoratec

(THOR) - Get Report

estimates, target boosted at UBS. Shares of THOR now seen reaching $44. Estimates also upped, as the company can continue to grow sales and margins throughout 2010. Buy rating.

Thoratec

(THOR) - Get Report

upgraded at Wells from Market Perform to Outperform. Estimates also raised, as pipeline visibility is improving.

Trimble Navigation

(TRMB) - Get Report

upgraded at Deutsche to Buy. $36 price target. Company boosted guidance, and is seeing an improving E&C market.

STOCK COMMENTS / EPS CHANGES

Aetna

(AET)

target, estimates lifted at Barclays. AET price target improved to $38 from $36. Strong earnings and stronger quality. 2010 and 2011 EPs estimates jumped to $2.80 and $2.90, respectively. Overweight rating.

Avnet

(AVT) - Get Report

estimates, target upped at UBS. AVT estimates were boosted through 2011. BELM acquisition is adding to earnings. Buy rating and new $37 price target.

Autozone

(AZO) - Get Report

estimates, target raised at Goldman. Shares of AZO now seen reaching $192. Estimates also increased, as the industry is showing higher growth. Neutral rating.

BorgWarner

(BWA) - Get Report

estimates, target increased at Goldman. BWA estimates were raised through 2012. Company is seeing productivity gains and should benefit from the Dytech acquisition. Neutral rating and new $46 price target.

Colgate-Palmolive

(CL) - Get Report

numbers reduced at Goldman. Shares of CL now seen reaching $98. Company is seeing a lower currency benefit. Buy rating.

Colgate-Palmolive

(CL) - Get Report

target, estimates higher at Barclays. CL price target increased to $87 from $84 after the company delivered another classic high-quality earnings report. 2010 and 2011 EPS estimates lifted to $4.83 and $5.38, respectively. Equal Weight rating.

ConocoPhillips

(COP) - Get Report

target, estimates raised at Barclays. COP price target lifted to $60 from $55 on 1Q10 EPS beat. 2010 and 2011 EPS estimates increased to $5.95 and $7.35, respectively. Equal Weight rating.

CVS Caremark

(CVS) - Get Report

numbers increased at Morgan Stanley. CVS estimates were raised through 2012. Company should gain PBM market share in 2011. Overweight rating and new $42 price target.

City National

(CYN)

numbers raised at FBR. Shares of CYN now seen reaching $56. Estimates also increased, because of improving credit trends and a higher net interest margin. Market Perform rating.

Hartford Financial

(HIG) - Get Report

numbers upped at FBR. HIG estimates were boosted through 2011. Company is seeing better margins in the mutual fund business. Market Perform rating and new $32 price target.

Health Management

(HMA)

price target boosted at Barclays to $11 from $9 as the company is well positioned to benefit from health care reform. Reiterate Overweight rating.

Starwood Hotels

(HOT)

numbers raised at FBR. Shares of HOT now seen reaching $53. Company is seeing a strong recovery in demand. Market Perform rating.

International Paper

(IP) - Get Report

numbers increased at Goldman through 2012. Company should benefit from rising containerboard, pulp and uncoated freesheet prices. Buy rating and new $35 price target.

KBW

(KBW)

estimates, target increased at FBR. KBW estimates were raised through 2011. Company is seeing higher investment banking activity. Market Perform rating and new $27 price target.

Kennametal

(KMT) - Get Report

estimates, target raised at Goldman. Shares of KMT now seen reaching $32. Estimates also increased, as the company is realizing higher margins. Sell rating.

MetLife

(MET) - Get Report

estimates, target boosted at FBR. Shares of MET now seen reaching $52. Estimates also upped, given higher investment income. Outperform rating.

McAfee

( MFE) estimates, target reduced at Morgan Stanley. Shares of MFE now seen reaching $43.50. Estimates also lowered, to match the company's new guidance. Overweight rating.

Mohawk Industries

(MHK) - Get Report

numbers raised at UBS. Shares of MHK now seen reaching $80. Estimates also increased, as the company can see improved operating leverage. Buy rating.

Mead Johnson

(MJN)

numbers boosted at Goldman. Shares of MJN now seen reaching 2012. Estimates also upped, as the company is seeing higher sales growth. Buy rating.

Maxim Integrated

(MXIM) - Get Report

numbers boosted at Morgan Stanley. Shares of MXIM now seen reaching $22. Estimates also upped, as the company should be able to quickly address supply constraints. Overweight rating.

OfficeMax

(OMX)

estimates, target upped at Goldman. OMX estimates were boosted through 2012. Company should be able to hold onto recent margin gains. Neutral rating and new $22 price target.

Procter & Gamble

(PG) - Get Report

numbers cut at Goldman. Shares of PG now seen reaching $68. Estimates were also lowered, as the company will raise its marketing spending. Neutral rating.

Procter & Gamble

(PG) - Get Report

target, estimate increased at Barclays. PG price target raised to $70 from $68. 3Q10 results provide evidence that PG's new strategy is effectively repositioning the company. 2011 EPS estimate lifted 5 cents to $4.10. Overweight rating.

QLogic

(QLGC)

estimates, target upped at Morgan Stanley. QLGC estimates were boosted through 2012. Company is seeing higher sales and a lower realized tax rate. Overweight rating and new $23 price target.

Ryland

(RYL)

estimates, target lowered at Goldman. Shares of RYL now seen reaching $24. Estimates also cut, as the company is seeing a slower ramp in new communities. Neutral rating.

Skyworks Solutions

(SWKS) - Get Report

target, estimates boosted at Barclays. SWKS price target raised to $19 from $16 as the RF leader delivered another strong quarter. 2010 and 2011 EPS estimates raised to $1.14 and $1.31, respectively. Equal Weight rating.

Time Warner Cable

(TWC)

numbers raised at Morgan Stanley. Shares of TWC now seen reaching $63. Estimates also increased, because of accelerating subscriber growth. Equal-weight rating.

Viacom

(VIA.B)

estimates, target boosted at Goldman. Shares of VIA.B now seen reaching $43. Estimates also upped, given higher advertising and affiliate fees. Buy rating.

Wynn Resorts

(WYNN) - Get Report

numbers increased at UBS. WYNN estimates were raised through 2011. Company is seeing higher margins in Macau. Buy rating and new $109 price target.

ExxonMobil

(XOM) - Get Report

price target lower at Barclays. XOM price target cut to $88 from $92. Solid production, but missed EPS. Overweight rating.

ExxonMobil

(XOM) - Get Report

estimates cut at UBS. XOM estimates were reduced through 2011. Company is seeing lower downstream results. Neutral rating and $72 price target.

This article was written by a staff member of TheStreet.com.