Analysts' Actions: IBM, AON, FOSL, HUM, EMC

NEW YORK (TheStreet) -- CHANGE IN RATINGS

Aon Corp (AON) downgraded at Citigroup to Neutral from Buy, Citigroup said. $51 price target. Delay of benefits in the Hewitt acquisition.

Yamana Gold (AUY) downgraded at Dahlman from Buy to Hold, Dahlman Rose said. Valuation call.

Cambrex Corporation (CBM) upgraded to buy at TheStreet Ratings.

Clearwire (CLWR) rated new Equal-weight at Evercore. $2 price target. Company still faces several risks.

Diebold (DBD) upgraded at JP Morgan to Neutral, JP Morgan said. Estimates also boosted, given the recent upside at NCR.

Enersis (ENI) downgraded to hold at TheStreet Ratings.

Fossil (FOSL) downgraded at Brean Murray from Buy to Hold, Brean Murray said. Guidance could prove disappointing.

Globe Specialty (GSM) downgraded at JP Morgan to Neutral, JP Morgan said. $15.50 price target. Company is leveraged to lower silicon and metal/alloy prices.

Henry Schein (HSIC) downgraded at Credit Suisse from Outperform to Neutral, Credit Suisse said. $78 price target. Valuation call, as the stock is up 21% since November.

IBM (IBM) rated new Buy at Sterne Agee. $230 price target. Ability to custom package software and services with hardware.

Mid-America Apartments (MAA) upgraded at Jefferies to Buy from Hold, Jefferies said. $72 price target. An attractive GARP play in the REIT space.

Newfield Exploration (NFX) downgraded at UBS to Neutral from Buy, UBS said. $41 price target. Vague 2012 production guidance that implies weaker volumes than expected.

Select Comfort (SCSS) upgraded at Wedbush from Neutral to Outperform, Wedbush Securities said. $36 price target. Company can continue to gain market share.

SL Green Realty Corp. (SLG) downgraded at Jefferies to Hold from Buy, Jefferies said. $78 price target. Good story but price has run up 16% year to date.

Urban Outfitters (URBN) downgraded at Brean Murray from Hold to Sell, Brean Murray said. $23 price target. New management will need some time to right the ship.

Warnaco (WFC) downgraded at Brean Murray from Buy to Hold, Brean Murray said. Consensus estimates, will likely prove aggressive, because of currency.

STOCK COMMENTS / EPS CHANGES

Amylin Pharmaceuticals (AMLN) target raised at Jefferies to $30, Jefferies said. Guidance suggests upside to Exenatide sales estimates. Buy rating.

Alliant Techsystems (ATK) numbers lowered at Goldman through 2014, Goldman Sachs said. Company reduced its guidance. Neutral rating and new $57 price target.

EMC (EMC) target raised at Oppenheimer to $28, Oppenheimer said. VFCache is an entry point into a fast growing segment. Outperform rating.

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