Analysts' Actions: AAPL BSX HLT MAR XOM

NEW YORK ( TheStreet) -- CHANGE IN RATINGS

Alcoa ( AA) was upgraded at J.P. Morgan to overweight from neutral. Twelve-month price target is $15. Aluminum market is tightening, J.P. Morgan said.

Apple (AAPL) was downgraded at Societe Generale to hold from buy. Twelve-month price target is $575. Expect slowing iPhone 5 sales, Societe Generale said.

Altera (ALTR) was upgraded at J.P. Morgan to overweight from neutral. Company is leveraged to higher carrier spending in China, J.P. Morgan said.

Bio-Reference Laboratories ( BRLI) was downgraded to hold at TheStreet Ratings.

Boston Scientific ( BDX) was upgraded at Piper Jaffray to overweight. Twelve-month price target is $18. Company is in the second leg of a multiyear move, Piper Jaffray said.

Bloomin Brands ( BLMN) was upgraded at J.P. Morgan to overweight. Share weakness overshadows expanding margins, J.P. Morgan said.

Covance (CVD) was downgraded at Goldman Sachs to neutral from buy. Valuation call, based on a 12-month price target of $101.

Gap (GPS) was upgraded at Sterne Agee to buy from underperform. Twelve-month price target is $44. Stock has lagged, and a solid holiday season sets the company up well for 2014, Sterne Agee said.

Hilton Worldwide ( HLT) was initiated with a neutral rating at Robert Baird. Valuation call, based on a twelve-month price target of $22, Robert Baird said.

Hilton Worldwide was initiated at UBS with a neutral rating. Valuation call with strong fundamentals, UBS said. Twelve-month price target is $23.

Marriott (MAR) was upgraded at Morgan Stanley to overweight. Twelve-month price target is $62. Domestic lodging outlook is accelerating, Morgan Stanley said.

Motorola Solutions (MSI) was upgraded at Citigroup to buy. Twelve-month price target is $75. Company is leveraged to an enterprise recovery and will likely buy back more shares, Citigroup said.

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