NEW YORK ( TheStreet) -- CHANGE IN RATINGSAetna ( AET) upgraded at JPMorgan to Overweight from Neutral. $52 price target. Expectation of upwardly revised numbers post CVH deal closing. Affymetrix ( AFFX) downgraded to sell at TheStreet Ratings. Alexion Pharmaceuticals ( ALXN) rated new Neutral at Citi. $104 price target. Will need significant upside to offset P/E contraction. Allot Communications ( ALLT) downgraded to hold at TheStreet Ratings. American Greetings ( AM) downgraded to hold at TheStreet Ratings. DST Systems ( DST) upgraded at Sterne Agee to Buy from Hold, Sterne Agee said. $71 price target. Clear path to monetize non-core assets. Mid America Apartment Communities ( MAA) rated new Hold at KeyBanc. Shares are fairly valued given the company's balanced growth. Marathon Petroleum ( MPC) rated new Neutral at JPmorgan. $62 price target. Attractive exposure to US Mid-Continent. Melco Crown Entertainment ( MPEL) upgraded at JPMorgan to Overweight from Neutral, JPmorgan said. $20 price target. Shares are attractive at current levels.
STOCK COMMENTS / EPS CHANGES
Aecom Technology ( ACM) numbers raised at D.A. Davidson. Shares of ACM now seen reaching $27, D.A. Davidson said. Estimates also raised on expected Advanced Micro Devices ( AMD) estimates cut at Oppenheimer through 2012, Oppenheimer said. Draws short straw while amending wafer supply agreement. Perform rating. Broadcom Corporation ( BRCM) estimates raised at D.A. Davidson through 2013, D.A. Davidson said. Positive comments from the analyst day. Buy rating. salesforce.com ( CRM) target raised at Citi. Shares of CRM now seen reaching $190, Citi said. A strong fourth quarter improves outlook. Buy rating. Ingersoll-Rand ( IR) numbers raised at Credit Suisse. Shares of IR now seen reaching $51, Credit Suisse said. Estimates also raised on margin potential. Outperform rating. lululemon athletica ( LULU) numbers raised at Credit Suisse. Shares of LULU now seen reaching $86, Credit Suisse said. Estimates also raised on strong 3Q demand. Outperform rating. Noble Energy ( NBL) numbers raised at UBS. Shares of NBL now seen reaching $126, UBS said. Estimates also increased on higher Marcellus and Niobrara NAVs. Buy rating. Yum! Brands ( YUM) estimates cut at Oppenheimer through 2013, Oppenheimer said. Recent SSS weakness in China. Outperform rating and $82 price target. YUM! Brands target lowered at Bank of America. Shares of YUM now seen reaching $76, Bank of America said. Softness in China sales. Buy rating. >To submit a news tip, email: firstname.lastname@example.org.