NEW YORK (TheStreet) -- CHANGE IN RATINGS

AMCOL International (ACO) was downgraded to hold at TheStreet Ratings.

MedAssets (MDAS) was upgraded at KeyBanc to buy from hold. Upside in earnings and reasonable valuation, KeyBanc said. $25 price target.

PAA Natural Gas
(PNG) was downgraded at UBS to neutral from buy. Valuation call, UBS said. $22.50 price target.

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Piedmont Natural Gas (PNY) was downgraded to hold at TheStreet Ratings.

R.R. Donnelley & Sons (RRD) was upgraded at Benchmark to buy from hold. Acquisition of CGS should be accretive, Benchmark said. $21 price target.

Praxair
(PX) was initiated at UBS with a neutral rating. Attractive business model with secular growth drivers, UBS said. $125 price target.

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Stock Comments / EPS Changes

Foot Locker ( FL) price target, EPS were raised at UBS. The company lifted its own numbers. Strong basketball footwear trends and stabilizing Running trends, UBS said. $45 price target and buy rating.

Global Payments (GPN) raised its estimates, price target at Credit Suisse. GPN lifted its numbers, CS said. Stability in the operating segment with margin expansion, Credit Suisse said. $67 price target and outperform rating.

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This article was written by a staff member of TheStreet.

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