NEW YORK (

TheStreet

) --

CHANGE IN RATINGS

Astea International

(ATEA)

downgraded to sell at TheStreet Ratings.

Atlas Air

(AAWW) - Get Report

upgraded at Dahlman from Hold to Buy, Dahlman Rose said. $57 price target. Earnings should improve as the company continues to take delivery of the 747.

Aurizon Mines

(AZK)

downgraded to hold at TheStreet Ratings.

Brocade

(BRCD)

upgraded at Cantor from Hold to Buy, Cantor Fitzgerald said. $6 price target. Company can gain market share in fibre channel and strengthen its balance sheet.

Broadcom

(BRCM)

rated new Outperform at Wedbush. $40 price target. Company has multiple potential growth drivers.

Commercial Metals

(CMC) - Get Report

upgraded at Goldman from Sell to Neutral, Goldman Sachs said. Valuation call, based on a $14 price target.

Community Health Systems

(CYH) - Get Report

upgraded to Buy at Citigroup to Buy from Neutral, Citigroup said. $30 price target. More positive view of the near term risk/reward around the Supreme Court's healthcare ruling.

Duke Energy

(DUK) - Get Report

upgraded at Credit Suisse from Neutral to Outperform, Credit Suisse said. $25.50 price target. Company offers solid growth and yield.

HCA Holdings

(HCA) - Get Report

upgraded at Citigroup to Buy from Neutral, Citigroup said. $33 price target. More positive view of the near term risk/reward around the Supreme Court's healthcare ruling.

Healthcare Management

(HMA)

upgraded at Citigroup to Buy from Neutral, Citigroup said. $9 price target. More positive view of the near term risk/reward around the Supreme Court's healthcare ruling.

NetApp

(NTAP) - Get Report

upgraded at Cantor from Hold to Buy, Cantor Fitzgerald said. $38 price target. Company is a market leader and a new flash storage product could help drive growth.

NVIDIA

(NVDA) - Get Report

upgraded at UBS to Buy from Neutral, UBS said. $15.50 price target. Positive risk reward and emerging lead role for Windows-on-ARM camp.

Southern Company

(SO) - Get Report

downgraded at Credit Suisse from Outperform to Neutral, Credit Suisse said. Valuation call, based on a $49 price target.

TripAdvisor

(TRIP) - Get Report

upgraded at Piper to Overweight, Piper Jaffray said. $52 price target. Fundamentals appear attractive over the coming quarters.

Universal Health Services

(UHS) - Get Report

upgraded at Citigroup to Buy from Neutral, Citigroup said. $51 price target. More positive view of the near term risk/reward around the Supreme Court's healthcare ruling.

Watson Pharmaceuticals

(WPI)

downgraded at Piper from Overweight to Neutral, Piper Jaffray said. Growth will likely slow in the coming quarters. $75 price target.

STOCK COMMENTS / EPS CHANGES

EMC

(EMC)

upgraded at Cantor from Hold to Buy, Cantor Fitzgerald said. $30 price target. Company is a market leader and can continue to expand margins.

Garmin

(GRMN) - Get Report

estimates lowered at Oppenheimer through 2013, Oppenheimer said. Macro weakness in Europe has dampened demand. Perform rating.

McDonald's

(MCD) - Get Report

estimates, target reduced at Credit Suisse.Shares of MCD now seen reaching $104, according to Credit Suisse. Estimates also cut, given lower realized sales. Outperform rating.

McDonald's numbers lowered at UBS. Shares of MCD now seen reaching $104, UBS said. Estimates also lowered to further account for currency and softer than expected sales in Europe. Buy rating.

Oracle

(ORCL) - Get Report

target lowered at Jefferies to $31, Jefferies said. Channel work suggests hardware was weak. Hold rating.

Riverbed Technology

(RVBD)

numbers cut at UBS. Shares of RVBD now seen reaching $18, UBS said. Estimates also lowered on weak EU and enterprise. Neutral rating.

Weyerhaeuser

(WY) - Get Report

added to Conviction Buy List at Goldman. Wood products prices remain strong in North America. $25 price target.

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This article was written by a staff member of TheStreet.