Editor's Note: Green and red arrows refer to intraday stock price movement.

NEW YORK (

TheStreet

) --

CHANGE IN RATINGS

AGL Resources

( AGL) upgraded at Citigroup from Hold to Buy, Citigroup said. Sell-off following the Nicor merger appears overdone.

Bunge

(BG) - Get Report

downgraded at BMO to Market Perform, BMO Capital said. Valuation call, based on a $73 price target.

Ciena

(CIEN) - Get Report

downgraded at UBS from Neutral to Sell, UBS said. $19 price target. See limited upside to the company's business model.

Cytec Industries

(CYT)

upgraded at Deutsche from Hold to Buy, Deutsche Bank said. $65 price target. Company is seeing better business momentum and is buying back stock.

Quest Diagnostics

(DGX) - Get Report

upgraded at Morgan Stanley to Equal-weight, Morgan Stanley said. Company should see a more stable utilization environment.

Emdeon

( EM) downgraded at Morgan Stanley from Overweight to Equal-weight, Morgan Stanley said. Valuation call.

Home Depot

(HD) - Get Report

upgraded at Goldman to Buy. Company has high sale visibility and can grow profitability. New $42 price target.

Lowe's

(LOW) - Get Report

downgraded at Goldman to Neutral, Goldman Sachs said. Company could face some disruptions, given the changes within its senior management. $28 price target.

MB Financial

( NBFI) upgraded at Baird from Neutral to Outperform, Robert Baird said. $26 price target. Company has a measured approach to repaying TARP and significant potential earnings power.

Motorola Mobility

(MMI) - Get Report

rated new Neutral at UBS. $33 price target. Company has the potential to turn its business around, but the industry will likely remain challenging.

Motorola Solutions

(MSI) - Get Report

rated new Neutral at Cowen. Valuation call.

Noble

(NE) - Get Report

downgraded at Sterne Agee to Neutral. Valuation call, as the company could be further affected by its exposure to the Gulf of Mexico.

National Oilwell Varco

(NOV) - Get Report

upgraded at Sterne Agee to Buy. $90 price target. Earnings can move above prior peak levels.

Oshkosh

(OSK) - Get Report

upgraded at JP Morgan from Underweight to Neutral, JP Morgan said. $42 price target. Company has new clarity around its Defense segment.

Penn National

(PENN) - Get Report

downgraded at Keybanc from Buy to Hold, Keybanc said. Valuation call, as the stock is up 57% over the past seven months.

Pall Corp

(PLL) - Get Report

upgraded at Credit Suisse to Outperform from Neutral as CEO retiring increases probability of takeout, Credit Suisse said. Price target increased to $66 from $54.

Transocean

(RIG) - Get Report

downgraded at Sterne Agee to Neutral, Sterne Agee said. Valuation call, as the company lacks near-term catalysts.

Rayonier

(RYN) - Get Report

downgraded at Deutsche from Buy to Hold, Deutsche Bank said. $62 price target. Stock is already pricing in higher near-term earnings.

Synovus Financial

(SNV) - Get Report

downgraded at Morgan Keegan from Outperform to Market Perform. Valuation call, based on a $2.80 price target.

Stanley Black & Decker

(SWK) - Get Report

downgraded at Keybanc from Buy to Hold, Keybanc said. Valuation call.

Southwest Gas

(SWX) - Get Report

downgraded at Citigroup SWX was downgraded to Hold, Citigroup said.

This article was written by a staff member of TheStreet.