NEW YORK (TheStreet) -- RATINGS CHANGES

NOW (DNOW) - Get Report was initiated at Barclays with an equal-weight rating. Offers leverage to the upcycle in capital spending in the industry, Barclays said. Twelve-month price target is $33.

Exelon (EXC) - Get Report was upgraded at Jefferies to buy from hold. Valuation call, with 12-month price target of $42.50, Jefferies said.

Medtronic (MDT) - Get Report was upgraded at RBC Capital to outperform from sector perform. Twelve-month price target is $73. Covidien (COV) deal makes both financial and strategic sense, RBC Capital said.

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Public Service Enterprise Group (PEG) - Get Report was upgraded at Jefferies to buy from hold. Driven by improving commodity outlook for forward power prices, Jefferies said. Twelve-month price target is $44.

Potash (POT) was downgraded to hold at TheStreet Ratings.

Southwest Airlines (LUV) - Get Report was upgraded at Stifel Nicolaus to buy from hold. Twelve-month price target is $30. Recent industry pullback has created a buying opportunity, Stifel Nicolaus said.

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JTH Holding (TAX) was upgraded to buy at TheStreet Ratings.

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This article was written by a staff member of TheStreet.