Analysts' Actions: IBM ADSK AEO BIG HD

NEW YORK (TheStreet) -- CHANGE IN RATINGS

Autodesk (ADSK) downgraded at BofA/Merrill to Underperform, Bank of America/Merrill Lynch said. $32 price target. Estimates also cut, as growth headwinds will likely persist.

Autodesk downgraded at Canaccord to Hold. $32 price target. Estimates also cut, given the company's new guidance.

Autodesk downgraded at JP Morgan from Overweight to Neutral, JP Morgan said. $32.50 price target. Growth thesis has eroded.

American Eagle (AEO) upgraded at BofA/Merrill from Underperform to Neutral, Bank of America/Merrill Lynch said. $24 price target. Estimates also boosted, given lower competitive pressures.

Alexion Pharmaceuticals (ALXN) rated new Hold at ThinkEquity. $105 price target. Soliris sales growth may begin to mature.

Aruba Networks (ARUN) downgraded to sell at TheStreet Ratings.

Sothebys (BID) upgraded to buy at TheStreet Ratings.

Big Lots (BIG) downgraded at Benchmark from Buy to Hold, Benchmark said. $33 price target. Consumers are seeing lower discretionary income.

Bristol-Myers (BMY) upgraded at BofA/Merrill to Buy, Bank of America/Merrill Lynch said. $36 price target. Valuation call, as the stock is down 9% year-to-date.

Federated Investors (FII) upgraded at Citigroup to Buy, Citigroup said. $25 price target. High money market exposure is a plus in the current environment.

Merck (MRK) downgraded at BofA/Merrill from Buy to Neutral, Bank of America/Merrill Lynch said. $45 price target. Valuation call, as the stock is up 14% year-to-date.

Swift Transportation (SWFT) rated new Hold at Dahlman. Have near-term concerns about the trucking industry.

TCF Financial (TCB) upgraded at BMO to Outperform, BMO Capital said. $13 price target. Management is successfully turning the business around.

Tripadvisor (TRIP) upgraded at Citigroup from Neutral to Buy. $44 price target. Valuation call, as the stock is down 30% from its July highs.

STOCK COMMENTS / EPS CHANGES

Autodesk (ADSK) numbers lowered at Jefferies. Shares of ADSK now seen reaching $37, Jefferies said. Estimates also lowered on a big step back. Buy rating.

Aruba Networks (ARUN) numbers upped at Lazard. ARUN estimates were boosted through 2013, Lazard said. Company boosted its guidance. Buy rating and new $24 price target.

Allegheny Technologies (ATI) numbers cut at Keybanc. ATI estimates were reduced through 2013, Keybanc said. Company is leveraged to slower macro growth. Buy rating and new $45 price target.

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