NEW YORK (

TheStreet

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CHANGE IN RATINGS

Aegion

(AEGN) - Get Report

upgraded to buy at TheStreet Ratings.

Apollo

(APOL)

downgraded at Deutsche from Buy to Hold, Deutsche Bank said. $45 price target. Company faces multiple growth headwinds.

Assured Guaranty

(AGO) - Get Report

upgraded to buy at TheStreet Ratings.

Coinstar

(CSTR) - Get Report

downgraded at JP Morgan from Overweight to Neutral, JP Morgan said. Valuation call, as the stock is up 35% year-to-date. $62 price target.

Cablevision

(CVC)

downgraded at Collins Stewart from Buy to Neutral, Collins Stewart. Growth will likely remain flat in the coming quarters.

Chevron

(CVX) - Get Report

upgraded at Deutsche from Hold to Buy, Deutsche Bank said. $130 price target. Valuation call, as the company is leveraged to higher Brent prices.

Domino's Pizza

(DPZ) - Get Report

downgraded at JP Morgan from Overweight to Neutral, JP Morgan said. $38 price target. Valuation call, as the stock is up 143% since last January.

Ecolab

(ECL) - Get Report

downgraded at JP Morgan from Overweight to Neutral, JP Morgan said. Valuation call, based on a $62 price target.

ITT Education

(ESI) - Get Report

downgraded at Deutsche from Hold to Sell, Deutsche Bank said. $50 price target. Enrollment trends will likely slow down, as the labor market improves.

Ironwood Pharmaceuticals

(IRWD) - Get Report

downgraded at Cantor to Sell, Cantor Fitzgerald said. Valuation call, based on a $10 price target.

Marathon Oil

(MRO) - Get Report

downgraded at Deutsche from Buy to Hold, Deutsche Bank said. $37 price target. Taking a more defensive stance on oil sector.

Murphy Oil

(MUR) - Get Report

downgraded at Deutsche from Buy to Hold, Deutsche Bank said. $64 price target. Company could be hurt by higher domestic oil supply.

Oasis Petroleum

(OAS) - Get Report

downgraded at Deutsche from Buy to Hold, Deutsche Bank said. Higher oil prices could hurt demand. $37 price target.

MetroPCS

(PCS)

rated new Neutral at Nomura. $13 price target. Company is positioned relatively well, but the prepaid business faces multiple headwinds.

MetroPCS downgraded at UBS to Neutral from Buy, UBS said. $11 price target. Revised guidance suggests downside to 2012 estimates.

Thompson Creek

(TC) - Get Report

downgraded at Dahlman from Buy to Hold, Dahlman Rose said. Costs at Mt. Milligan project are rising significantly.

Viropharma

(VPHM)

downgraded at Auriga from Buy to Hold, Auriga USA said. Valuation call, based on a $34 price target.

Western Refining

(WNR)

downgraded at Morgan Stanley from Overweight to Equal-weight, Morgan Stanley said. Valuation call, based on a $21 price target.

STOCK COMMENTS / EPS CHANGES

Apple

(AAPL) - Get Report

estimates, target boosted at Sterne Agee. Shares of AAPL now seen reaching $620, according to Sterne Agee. Estimates also upped, given higher expected demand for the new iPad. Buy rating.

AutoZone

(AZO) - Get Report

numbers raised at UBS. Shares of AZO now seen reaching $400, according to UBS. Estimates also increased on industry leading comp growth.

AutoZone numbers raised at Citigroup. Shares of AZO now seen reaching $395, according to Citigroup. Estimates also increased on better comp expectations. Buy rating.

Cooper Industries

( CBE) numbers increased at Morgan Stanley. CBE estimates were raised through 2013, Morgan Stanley said. Company boosted its guidance. Equal-weight rating and new $63 price target.

Domino's Pizza

(DPZ) - Get Report

numbers raised at Oppenheimer. Shares of DPZ now seen reaching $44, Oppenheimer said. Estimates also raised on EPS accretion. Outperform rating.

Eastman Chemical

(EMN) - Get Report

numbers upped at BofA/Merrill. EMN estimates were boosted through 2013, Bank of America/Merrill Lynch said. Company is realizing higher margins. Buy rating and new $68 price target.

EOG Resources

(EOG) - Get Report

target raised at Oppenheimer. Shares of EOG now seen reaching $140, Oppenheimer said. Liquids production growth boosts valuation. Outperform rating.

Eaton Corp.

(ETN) - Get Report

numbers raised at Oppenheimer. Shares of ETN now seen reaching $60, Oppenheimer said. Estimates also raised on positive analyst meeting. Outperform rating.

Foot Locker

(FL) - Get Report

target raised at Jefferies to $29, Jefferies said. High expectations into next week's analyst day. Hold rating.

First Solar

(FSLR) - Get Report

estimates, target cut at Citigroup. Shares of FSLR now seen reaching $45, according to Citigroup. Estimates also lowered on deferral of revenue rcognition in the EPC business. Neutral rating.

Great Plains

(GXP)

numbers cut at Wunderlich. Shares of GXP now seen reaching $21, according to Wunderlich. Estimates also reduced, as the company is realizing lower margins. Hold rating.

Impax Laboratories

(IPXL)

numbers raised at Jefferies. Shares of IPXL now seen reaching $21, Jefferies said. Estimates also raised on expected fourth qaurter upside. Hold rating.

Microsoft

(MSFT) - Get Report

target raised at Nomura. Shares of MSFT now seen reaching $37, according to Nomura. Stock trends to trade well ahead of a new Windows launch. Buy rating.

Rowan Companies

(RDC)

estimates, target lowered at UBS. Shares of RDC now seen reaching $41, according to UBS. Estimates also lowered on higher operating and interest expenses. Buy rating.

Rowan Companies numbers lowered at Jefferies. Shares of RDC now seen reaching $45, Jefferies said. Estimates also lowered on disappointing guidance. Buy rating.

SM Energy

(SM) - Get Report

target lowered at Jefferies tO $93, Jefferies said. Plans provide visibility into vast probables value but main challenge is managing cash flows. Buy rating.

Tenet Healthcare

(THC) - Get Report

numbers raised at Credit Suisse. Shares of THC now seen reaching $7, according to Credit Suisse. Estimates also increased, as growth should accelerate in the second half of the year. Outperform rating.

Tractor Supply

(TSCO) - Get Report

numbers increased at BofA/Merrill through 2014, Bank of America/Merrill Lynch said. Demand has been solid and the company is buying back more shares. Buy rating and new $95 price target.

ViroPharma Incorporated

(VPHM)

target raised at Oppenheimer to $34, Oppenheimer said. Addition of Buccolam to net present value. Outperform rating.

ViroPharma Incorporated numbers raised at Jefferies. Shares of VPHM now seen reaching $37, Jefferies said. Estimates also raised on expanded manufacturing capacity. Buy rating.

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This article was written by a staff member of TheStreet.