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) - Get Report

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

Cognizant Technology

(CTSH) - Get Report

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) - Get Report

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) - Get Report

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) - Get Report

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) - Get Report

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

Sirius XM Radio

(SIRI) - Get Report

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) - Get Report

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) - Get Report

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) - Get Report

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) - Get Report

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

Intercontinental Exchange

(ICE) - Get Report

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) - Get Report

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) - Get Report

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) - Get Report

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) - Get Report

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) - Get Report

estimates boosted through 2012 at UBS. Company should continue to see sales growth. Buy rating and $99 price target.

SBA Communications

(SBAC) - Get Report

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.