NEW YORK ( TheStreet) -- CHANGE IN RATINGSAllegheny 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.