Analyst Upgrades

• General Growth (GGP) to outperform from neutral at Credit Suisse.
• PPL Corp. (PPL) to outperform from market perform at FBR Capital.
• Hudson City Bancorp (HCBK) to neutral from reduce at Nomura.
• Hologic (HOLX) to conviction buy from buy at Goldman.
• Cognex (CGNX) to overweight from neutral at Piper Jaffray.
• Buckeye Partners (BPL) to outperform from market perform at Wells Fargo.
• Ericsson (ERIC) and Health Care REIT (HCN) to buy from neutral and Olin (OLN) to neutral from sell at UBS.
• Nalco (NLC) to overweight from neutral at JPMorgan.
• Watts Water (WTS) to buy from hold at BB&T.
• McDermott (MDR) to buy from neutral at Pritchard.

Analyst Upgrades

• Dominion (D) to buy from hold at Deutsche Bank.
• Corinthian Colleges (COCO) to outperform from underperform at RBC Capital.
• Canadian National (CNI) to sector outperformer from sector performer at CIBC.
• DragonWave (DRWI) to buy from hold at Jefferies.
• Infosys (INFY) to overweight from equal weight at Morgan Stanley.
• SL Green Realty (SLG), Lexington Realty (LXP) and Taubman Centers (TCO) to overweight from neutral at JPMorgan.
• Sunstone Hotel (SHO) to buy from neutral and Extra Space Storage (EXR) to buy from hold at KeyBanc.

Option traders appear to be setting up for a bullish move on TransDigm Group Incorporated (TDG). Traders plowed into 1,865 new call option contracts -- 84.77 times the average volume -- on the stock on Thursday. And we know that traders were eager to get into this trade because 96% of the trades came in on the ask price.

TransDigm has been hitting 52-week highs for a few days in a row now. The stock closed Thursday at $61.25, up 7.65% during the past month.

Analyst upgrades

• Wells Fargo upgraded Boeing (BA) to outperform from market perform. The firm is more confident about the company's earnings growth going forward.
• Oppenheimer upgraded H&R Block (HRB) to outperform from perform on expectations the company will improve performance in 2011. The firm has a $22 price target for shares.
• Deutsche Bank upgraded SunTrust (STI) to buy from hold to reflect valuation and expectations the company's credit will improve. The firm raised its target for shares to $34 from $29.
• Children's Place (PLCE) was upgraded to overweight from neutral at JPMorgan.
• Taubman Centers (TCO) was upgraded to neutral from sell at UBS.
• Cavium Networks (CAVM) was upgraded to outperform from neutral at Cowen.

Analyst Upgrades

• Oppenheimer upgraded Hubbell (HUB.B) to outperform from perform to reflect the company's improving operations, margin expansion and valuation. The firm raised its target price on shares to $53 from $51.
• UBS upgraded Weingarten Realty (WRI) and Taubman Centers (TCO), Boston Properties (BXP), ProLogis (PLD) and AMB Property (AMB) to neutral from sell and SL Green Realty (SLG) to buy from neutral, citing the recent correction in the group.
• Benchmark Co. upgraded Time Warner (TWX) to buy from hold on expectations the company is positioned for steady, sustainable growth as advertising demand rebounds. The firm has a $35 price target on shares.
• Eastman Chemical (EMN) was upgraded to overweight from neutral at JPMorgan.
• Constellation Energy (CEG) was upgraded to overweight from equal weight at Barclays.
• Noble Corporation (NE) was upgraded to outperform from market perform at FBR Capital.

Analyst upgrades:

• Baird upgraded Tenet Healthcare (NYSE: THC) to Outperform from Neutral and raised its target to $6 from $5 based on cost trends, valuation, and expectations the company can beat expectations over the next six months.
• Oppenheimer upgraded E-House (NYSE: EJ) to Outperform from Perform following the company's better-than-expected Q2 results. The firm has a price target of $27 on shares.
• JPMorgan upgraded Avery Dennison (NYSE: AVY) to Overweight from Neutral and has a $33 target on the stock. The firm cites valuation for the upgrade following the recent underperformance and expects the company's margins to expand as demand rebounds.
• Citigroup (NYSE: C) was upgraded to Buy from Underperform at BofA/Merrill.
• Taubman Centers (NYSE: TCO) was upgraded to Conviction Buy from Buy at Goldman.
• First Niagara (NASDAQ: FNFG) was upgraded to Buy from Neutral at Janney Montgomery.

Analyst upgrades:

• Jefferies upgraded MDS Inc. (NYSE: MDZ) to Buy from Hold on valuation as it believes shares are pricing in a "worst case" scenario at current levels. The firm keeps a $6.50 target on the stock.
  
• JP Morgan upgraded Continental (NYSE: CAL) to Overweight from Neutral on valuation as it believes the recent sell-off is overdone. The firm keeps a $13 price target on the stock.
• Thomas Weisel is positive on Allergan's (NYSE: AGN) diverse product portfolio, global infrastructure, vertical integration, and deep pipeline. The firm upgraded shares to Overweight from Market Weight and has a $54 target on the stock.
• NetLogic (NASDAQ: NETL) was upgraded to Buy from Neutral at Piper.
  
• Dover (NYSE: DOV) was raised to Buy from Neutral at Banc of America/Merrill.
  
• Map Pharmaceuticals (NASDAQ: MAPP) was upgraded at Argus to Hold from Sell.

MOST NOTEWORTHY: Taubman Centers, AstraZeneca and Blue Nile were today's noteworthy initiations:

• Friedman Billings believes Taubman Centers (NYSE: TCO) is very well positioned with its upscale regional malls and lifestyle centers to weather the current challenges in the current retail environment. Shares were assumed with an Outperform rating and $64 target.
  
• JP Morgan initiated AstraZeneca (NYSE: AZN) with a Neutral rating. The firm expects investor confidence in the coming months to improve as expectations are AZN's pipeline is low.
  
• Deutsche Bank finds Blue Nile (NASDAQ: NILE) fairly valued given the challenging economic environment and rising commodity prices and initiated shares with a Hold rating and $48 target.

OTHER INITIATIONS:

• Wachovia started American Water Works (NYSE: AWK) with a Market Perform rating.
  
• Heartland Payment (NYSE: HPY) was assumed with a Buy rating and $33 target at Citigroup.
  
• Goldman resumed coverage of AbitibiBowater (NYSE: ABH) with a Neutral rating.