Analyst Upgrades

• TD Newcrest upgraded Agrium (AGU) to action list buy from hold based on a higher valuation supported by BHP's (BHP) bid for Potash (POT). The firm raised its price target for Agrium to $95 from $76.
• Wells Fargo upgraded Weingarten Realty (WRI) to outperform from market perform, citing valuation and stronger retail occupancy.
• Deutsche Bank upgraded Aegon (AEG) to buy from hold after the company won European Union approval for its recapitalization using state aid.
• HCP Inc. (HCP) was upgraded to buy from hold at Argus.
• MedAssets (MDAS) was upgraded to buy from accumulate at Madison Williams.
• BreitBurn Energy (BBEP) was upgraded to outperform from sector perform at RBC Capital.

It is supposed to be Mondays that are the day of mergers. Three deal announcements this morning offered a large boost in investor confidence and production data allowed traders to put a portion of "The Risk Trade" back on. Depending upon the index, some stock indexes had been down six days.

Here were the unofficial closing bell levels:

Dow Jones 10,405.85 +103.84 (1.01%)
S&P 500 1,092.55 +13.17 (1.22%)
Nasdaq 2,209.44 +27.57 (1.26%)

If you would have just focused on the Empire Manufacturing number and then looked at the red zone on the DJIA and S&P 500 throughout the whole day you would have assumed a very weak close. But then came an oversold interest rally, which coincided with Meredith Whitney being more skeptical and negative on a CNBC interview. It seems like we went from triple-digit losses to being in the black in very short order.

Here were today's unofficial closing bell levels:

Dow 10,625.83 +5.67 (0.05%)
S&P 500 1,136.94 +1.26 (0.11%)
Nasdaq 2,354.23 +7.38 (0.31%)

Top Analyst Upgrades & Downgrades

Analyst Upgrades

• JPMorgan upgraded Mohawk (MHK) to overweight from neutral. The firm finds shares attractive following their recent underperformance and has a positive outlook for the building products space in 2010. JPMorgan has a $53.50 price target on the stock.
• Stephens upgraded Alexander & Baldwin (ALEX) to overweight from equal weight to reflect improving volume trends and the upcoming move of the company's Transport division from Japan to Guam, which it believes will serve as a positive catalyst. Stephens raised its target price on shares to $41 from $26.
• Deutsche Bank upgraded Unum Group (UNM) to buy from hold as it believes an acceleration of growth and potential buybacks could serve as positive catalysts. The firm raised its target on shares to $26 from $25.
• News Corp. (NWS) was raised to neutral from sell at Pali Capital.
• CA Inc. (CA) was upgraded to buy from hold at Jefferies.
• Pactiv (PTV) was upgraded to buy from hold at KeyBanc.

MOST NOTEWORTHY: Warner Music Group Corp (WMG), Red Robin Gourmet Burgers, Inc (RRGB) and Berkshire Hathaway Inc (BRK.A) were some of today's notable upgrades:

• Pali Capital upgraded shares of Warner Music Group Corp (NYSE: WMG) on valuation.

• Matrix USA upgraded Red Robin Gourmet Burgers Inc (NASDAQ: RRGB) to Hold from Sell on valuation.

• Berkshire Hathaway Inc (NYSE: BRK.A) was upgraded to In Line from Underperform at Fox-Pitt, Kelton.

OTHER UPGRADES:

• UBS upgraded ARM Holdings plc (NASDAQ: ARMHY) to Buy from Neutral as the firm believes the company will be a significant beneficiary of the acceleration in 3G handset adoption in 2007.

• Wachovia upgraded Pactiv Corp (NYSE: PTV) to Outperform from Market Perform on valuation.

• Baird raised Patterson Companies (NASDAQ: PDCO) rating to Outperform from Neutral.

• BMO Capital raised UCBH Holdings, Inc (NASDAQ: UCBH) rating to Outperform from to Market Perform.

• O2Micro International Ltd (NASDAQ: OIIM) was upgraded to Buy from Neutral at Oppenheimer citing a possible near-term court settlement with Samsung, which provides significant earnings leverage.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).