Analysts' Actions: GRPN, VRUS, MU, CVC

NEW YORK ( TheStreet) -- CHANGE IN RATINGS

Amgen ( AMGN) upgraded to buy at TheStreet Ratings.

BMC Software ( BMC) was upgraded from underweight to neutral at JPMorgan. Valuation call, based on a $34 price target.

Continental Resources ( CLR) was initiated with a buy rating at Dahlman Rose. $75 price target. Bakken shale should continue to drive growth.

DTE Energy ( DTE) was upgraded from neutral to outperform at Credit Suisse. Improved state regulation should help drive earnings growth. $59 price target.

Gen-Probe ( GPRO) was initiated with a buy rating at Deutsche Bank. $70.50 price target. Company is a market leader and new products should drive growth in 2012.

Groupon ( GRPN) was initiated with a hold rating at Stifel Nicolaus. Stock is already discount several years of hyper growth.

Coverage of Groupon was started with an outperform rating at Barrington Research. $30 price target. Company is a market leader and has significant scale.

Kirby ( KEX) was initiated with an overweight rating at Evercore. $74 price target. Double-digit EPS growth likely to continue through 2013 driven by strong demand fundamentals.

Lazard ( LAZ) was upgraded from neutral to outperform at Credit Suisse said. Valuation call, based on a $31 price target.

Louisiana-Pacific ( LPX) was downgraded to reduce at TD Securities. Valuation call, as the stock is up 64% since October. $6.50 price target.

Coverage of Madison Square Garden ( MSG) was started with a buy rating at Needham. $37 price target. Stock is attractive on a sum-of-the-parts basis.

Vail Resorts ( MTN) was initiated with an outperform rating at Credit Suisse. $56 price target. Demand remains strong from high-end travelers.

Children's Place ( PLCE) was downgraded from buy to neutral at Sterne Agee. Company is facing increased competition and merchandising could be hurt by weather trends. $60 price target.

Pinnacle West ( PNW) was downgraded from outperform to neutral at Credit Suisse. Valuation call, based on a $52 price target.

Spirit Aerosystems ( SPR) was upgraded from neutral to outperform at Credit Suisse. $27 price target. Company should generate positive free cash flow in 2012.

Torchmark ( TMK) was upgraded from underperform to neutral at Credit Suisse. Valuation call.

Viropharma ( VPHM) was initiated with a neutral rating at Goldman Sachs. $26 price target. Company lacks near-term catalysts.

Pharmasset ( VRUS) was downgraded from buy to neutral at Robert W. Baird. $137 price target. Risk inherent in any new DAA combination.

STOCK COMMENTS / EPS CHANGES

Aetna ( AET) estimates increased through 2012 at UBS. Investor day delivers constructive commentary. Maintain $43 price target and neutral rating.

C.R. Bard ( BCR) numbers lowered at Citigroup. Shares of BCR now seen reaching $87. Estimates also lowered on slightly weaker 2012 outlook. Neutral rating.

Centene Numbers ( CNC) raised at Oppenheimer. Shares of CNC now seen reaching $48. Estimates also raised on strong 2012 guidance. Outperform rating.

Centene estimates, target raised at UBS. Shares of CNC now seen reaching $44. Estimates also increased on significant new business coming on in 2012. Buy rating.

Cablevision Systems ( CVC) was added to Top Picks Live at Citigroup. Market reaction to recent misses overdone. $21 price target.

Diamond Offshore ( DO) target cut at Goldman Sachs. Shares of DO now seen reaching $68. Company is realizing lower day rates and receiving fewer bonus payments from Brazil.

Darden Restaurants ( DRI)numbers cut at BMO Capital. Shares of DRI now seen reaching $50. Estimates also reduced, given higher food costs. Market perform rating.

Juniper ( JNPR) estimates were reduced through 2013 at Morgan Stanley. Carrier spending continues to slow down. Overweight rating and new $24 price target.

Micron ( MU) target reduced at Morgan Stanley. Shares of MU now seen reaching $10. PC memory demand remains weak. Overweight rating.

NRG Energy ( NRG) NRG estimates raised through 2012 at UBS. Decline in interest expense after Agua Caliente deal. Maintain $20 price target and neutral rating.

Rite Aid ( RAD) numbers raised at Goldman Sachs. Shares of RAD now seen reaching $1.50. Estimates also increased, as the company is realizing higher margins. Neutral rating.

TCF Financial ( TCB) estimates were cut through 2013 at Morgan Stanley. Durbin rules will cause costs to rise. Overweight rating and new $15 price target.

United Rentals ( URI)numbers raised at Oppenheimer. Shares of URI now seen reaching $37. Estimates also raised on RSC Holding acquisition. Outperfrom rating.

United Rentals numbers boosted at Keybanc. Shares of URI now seen reaching $34. Estimates also upped, as the RRR purchase should be accretive to earnings. Buy rating.

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

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