NEW YORK (TheStreet) -- CHANGE IN RATINGS

Allegheny Energy ( AYE) downgraded at Barclays to Equal Weight from Overweight. Valuation call and waiting for merger to close, Barclays said. Price target increased by a dollar to $24.

Babcock & Wilcox ( BWC) initiated at Barclays with an Equal Weight rating and $27 price target. Potential significant earnings growth as utility spending recovers, Barclays said.

Comstock Resources ( CRK) downgraded at Oppenheimer from Outperform to Perform. Company cut its production guidance, and costs are rising in the Haynesville shale.

Cognizant Technology ( CTSH) downgraded at Morgan Stanley from Overweight to Equal-weight. $63 price target. Valuation call, as the stock has gained 35% year-to-date.

Hub Group ( HUBG) downgraded at UBS from Buy to Neutral. $36 price target. Valuation call, as the stock is up 24% in 2010. $36 price target.

Martin Marietta ( MLM) upgraded at UBS from Neutral to Buy. $96 price target. Company is improving its balance sheet and has earnings leverage.

Qwest Communications ( Q) downgraded at Collins Stewart from Buy to Hold. Valuation call, based on a $6 price target.

Range Resources ( RRC) initiated with a Hold at Citigroup. $42 price target. Company has significant growth potential in the Marcellus shale, but the stock already trades at a premium to its peers.

Rayonier ( RYN) downgraded at JP Morgan from Neutral to Underweight. Valuation call, based on a $48 price target.

Sirius XM Radio ( SIRI) upgraded at Wunderlich from Hold to Buy. $1.50 price target. Company is executing well in a low-growth environment.

Savient Pharmaceuticals ( SVNT) upgraded at Banc of America/Merrill Lynch to Neutral from Underperform as Krystexxa approval is increasingly likely in September. Price target raised by a dollar to $16.

Thomson Reuters ( TRI) downgraded at Deutsche from Buy to Hold. $42 price target. Markets business is still struggling.

STOCK COMMENTS / EPS CHANGES

Agrium ( AGU) estimates, target increased at Citigroup. Estimates were raised through 2011, Citigroup said. Potash volumes are recovering. Buy rating and new $80 price target.

AOL ( AOL) estimates raised through 2011 at UBS. U.S. display advertising is improving. Neutral rating and $25 price target.

Atmel ( ATML) estimates, target boosted at UBS. Shares now seen reaching $7.50, according to UBS. Estimates also upped, given the company's higher realized gross margin and lower expense outlook. Buy rating.

American Express ( AXP) estimates increased through 2012 at Morgan Stanley. New products are driving sales growth, and the company will likely repurchase more stock. Overweight rating and $52 price target.

Cameron International ( CAM) numbers boosted at Citigroup. Shares now seen reaching $45, according to Citigroup. Estimates also upped, as the company is keeping a tight lid on costs. Hold rating.

Crown Holdings ( CCK) target boosted at Banc of America/Merrill Lynch. Shares now seen reaching $33. Company will likely repurchase more shares. Buy rating.

Clearwire ( CLWR) estimates lowered through 2011 at Morgan Stanley. Company is adding more customers, but softening prices more to do so. Underweight rating.

Dupont Fabros ( DFT) numbers upped through 2011 at Citigroup. Company is seeing better demand for its data centers and has improved its balance sheet. Hold rating and new $27 price target.

Devon Energy ( DVN) estimates increased through 2011 at UBS. Company boosted its production guidance and is repurchasing stock. Buy rating and $80 price target.

Intercontinental Exchange ( ICE) numbers cut at Morgan Stanley. Shares now seen reaching $117. Estimates also reduced, given lower expected volumes. Equal-weight rating.

Interoil ( IOC) target raised at Morgan Stanley. Shares of IOC now seen reaching $125. Joint venture is a key step in the company's strategy. Overweight rating.

Marvell Technology ( MRVL) target cut at Morgan Stanley to $24. Company could be hurt by weaker PC demand, though the wireless business remains strong. Overweight rating.

Murphy Oil ( MUR) estimates reduced through 2011 at Morgan Stanley. Company cut its production guidance. Overweight rating and $71 price target.

99c Only Stores ( NDN) target, estimates boosted at Banc of America/Merrill Lynch. Price target lifted by a dollar to $16 on ongoing improvements, Bank of America/Merrill Lynch said. 2010 and 2011 EPS estimates increased to $0.92 and $1.07, respectively. Higher traffic driving strong results.

Northeast Utilities ( NU) estimates upped through 2011 at UBS. Company should benefit from two new rate cases. Buy rating and $31 price target.

OfficeMax ( OMX) estimates, target reduced at Citigroup. Shares now seen reaching $18. Estimates also cut, given the company's new sales guidance. Buy rating.

ON Semiconductor ( ONNN) estimates upped through 2011 at Morgan Stanley. Company continues to exceed expectations. Underweight rating.

Pulte Homes ( PHM) estimates reduced through 2011 at UBS. Company is seeing lower sales, but will keep prices firm. Sell rating and $9 price target.

Prudential Financial ( PRU) estimates upped at Banc of America/Merrill Lynch. Estimates were boosted through 2012, Bank of America/Merrill Lynch said. Company is seeing higher annuity profits. Buy rating.

Prudential Financial estimates raised at Credit Suisse. 2010 and 2011 EPS estimates increased to $5.85 and $6.40, respectively. Another solid quarter, Credit Suisse said. Maintain Outperform rating and $70 price target.

Polo Ralph Lauren ( RL) estimates boosted through 2012 at UBS. Company should continue to see sales growth. Buy rating and $99 price target.

SBA Communications ( SBAC) estimates reduced through 2012 at Morgan Stanley. CapEx is rising because of acquisition-related costs. Equal-weight rating.

TRW Automotive ( TRW) numbers raised at JP Morgan. Shares now seen reaching $48. Estimates also increased, as the company is seeing higher margins and is reducing debt. Overweight rating.

Time Warner ( TWX) estimates, target raised at Benchmark Company. Shares now seen reaching $40, according to Benchmark Company. Company is seeing better growth in its Networks and Filmed Entertainment divisions. Buy rating.

This article was written by a staff member of TheStreet.

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