Up/Downgrades (DNR, HPQ, IDIX, MTRN, MTOR, PPG, RIMM, SYA, UNFI, AHS, CCRN, DDS, ISTA, NBR, NFP, PPL, TX, ZION)

Published on Tuesday, 29 November 2011 08:37 Written by Danny Miller

New York, November 29^th (TradersHuddle.com) – Following are some of the top upgrades and downgrades before the market open.

Upgrades

Denbury Resources (NYSE:DNR), the Gulf Coast operator of oil and natural gas properties, was upgraded to a Buy from Neutral at SunTrust.

Hewlett-Packard (NYSE:HPQ), the world’s largest PC maker, was upgraded to Outperform from Sector Perform at RBC Capital.

Idenix Pharmaceuticals (NASDAQ:IDIX) was upgraded to Outperform from Market Perform at William Blair.

Materion Corp. (NYSE:MTRN) was upgraded to a Buy from Hold at KeyBanc Capital Markets.

Meritor (NYSE:MTOR) was upgraded to Overweight from Underweight at Morgan Stanley.

PPG Industries (NYSE:PPG), the maker of protective and decorative coatings, was upgraded to a Buy from Hold at Keybanc Capital Markets.

Research In Motion (NASDAQ:RIMM), the maker of the Blackberry smartphone, was upgraded to Market Perform from Underperform at Bernstein.

Symetra Financial (NYSE:SYA) was upgraded to a Neutral from Underperform at Bank of America Merrill.

United National Foods (NASDAQ:UNFI) was upgraded to a Buy from Hold at Jefferies.

Downgrades

AMN Healthcare Services (NYSE:AHS) was downgraded to a Neutral from Buy at SunTrust.

Cross Country (NASDAQ:CCRN) was downgraded to a Neutral from Buy at SunTrust.

Dillards (NYSE:DDS) was downgraded to a Neutral from Buy at Sterne Agee.

ISTA Pharmaceuticals (NASDAQ:ISTA) was downgraded to a Neutral from Buy at SunTrust.

Nabors Industries (NYSE:NBR) was downgraded to a Hold from Buy at Jefferies.

National Financial Partners (NYSE:NFP) was downgraded to Underperform at Bank of America Merrill.

PPL Corp (NYSE:PPL), the Allentown, Pennsylvania based electricity generator, was downgraded to Equal Weight from Overweight at Barclays.

Ternium S.A. (NYSE:TX), the steelmaker based in Argentina, was downgraded to a Neutral from Buy at Bank of America Merrill.

Zions Bancorp (NASDAQ:ZION), the collection of regional banks with operations in the Western U.S., was downgraded to a Neutral from Outperform at Macquarie.