Analyst Upgrades

• Citigroup (C) to outperform from market perform at Bernstein.
• Cubist Pharma (CBST) to outperform from neutral at RW Baird.
• Pentair (PNR) to buy from hold at Citigroup.
• Heritage Financial (HFWA) to outperform from market perform at Keefe Bruyette.
• SL Green Realty (SLG) and Digital Realty (DLR) to market perform from underperform at FBR Capital.
• MGM Resorts (MGM) to neutral from Sell at Janney Capital.
• Ciena (CIEN) to buy from neutral and Olin (OLN) to buy from underperform at BofA/Merrill.
• Mellanox (MLNX) to overweight from equal weight at Barclays.
• ConocoPhillips (COP) and Canadian Natural (CNQ) to overweight from neutral at JPMorgan.
• IDEX (IEX) to outperform from perform at Oppenheimer.
• Taiwan Semiconductor (TSM) to buy from hold at Deutsche Bank.
• Ctrip.com (CTRP) to positive from neutral at Susquehanna.
• Linear Technology (LLTC) and Analog Devices (ADI) to hold from sell at Auriga.
• Quicksilver (KWK) to outperform from market perform at BMO Capital.

Analyst Upgrades

• Wells Fargo (WFC) to conviction buy from neutral at Goldman.
• Adobe (ADBE) to buy from neutral at UBS.
• Fifth Third Bancorp (FITB) to outperform from market perform at FBR Capital.
• Vail Resorts (MTN) and Goldcorp (GG) to buy from hold at Deutsche Bank.
• OmniVision (OVTI) to overweight from neutral at JPMorgan.
• Penn Virginia (PVA) to hold from sell at Canaccord.
• Hub Group (HUBG) to outperform from market perform at Morgan Keegan.

Analyst Upgrades

• Credit Suisse upgraded Netflix (NFLX) to neutral from underperform and raised its price target to $140 from $90. The firm's survey work indicates Netflix's streaming offering is compelling and will continue to grow as it acquires additional streaming content.
• Barclays upgraded Ford (F) to overweight from equal weight, citing the company's earnings power, reduced cost base, expectations for a return to prior peak margins and valuation. The firm raised its target to $16 from $15.
• Merriman upgraded OpenTable (OPEN) to buy from neutral based on increased visibility into international expansion from the toptable.com acquisition and upside from its Spotlight product.
• Siemens (SI) was upgraded to conviction buy from buy at Goldman.
• Medicis (MRX) was upgraded to buy from hold at Jefferies.
• IDEX (IEX) was upgraded to outperform from neutral at Baird.

Analyst Upgrades

• Barclays upgraded Visa (V) to overweight from equal weight following the Q1 report and guidance. The firm raised its target to $97 from $91.
• Merriman upgraded AOL (AOL) to neutral from sell on valuation and better trends in online advertising.
• Barrington upgraded Idex (IEX) to outperform from market perform following the results on expectations the company's 2010 sales and profits will recover. The firm set a $36 target on shares.
• Credit Suisse upgraded Rio Tinto (RTP) to neutral from underperform and BHP Billiton (BHP) to outperform from neutral.
• Posco (PKX) was raised to overweight from neutral at HSBC.
• MetLife (MET) was upgraded at Keefe Bruyette to outperform from market perform.

MOST NOTEWORTHY: Centene, Brinker International, Harmonic, Idex and Royal Dutch Shell were today's noteworthy upgrades:

• Jefferies upgraded shares of Centene Corporation (NYSE: CNC) to Buy from Hold as they expect the company is benefiting from above 20% revenue growth next year and SG&A leverage opportunity over the next 12–18 months.
  
• Bear Stearns upgraded shares of Brinker International (NYSE: EAT) to Outperform from Peer Perform as they believe Brinker's turnaround efforts can enhance shareholder value.
  
• Friedman Billings raised shares of Harmonic (NASDAQ: HLIT) to Outperform from Market Perform based on the favorable outlook for cable and satellite spending on HD video and other projects.
  
• The firm also upgraded Idex Corporation (NYSE: IEX) to Outperform from Market Perform, citing the company's positive 2008 outlook and solid end markets.
  
• Goldman upgraded Royal Dutch Shell (NYSE: RDS.A) to Neutral from Sell on valuation.

OTHER UPGRADES:

• CIBC upgraded J. Crew Group (NYSE: JCG) to Sector Outperformer from Sector Performer and Parker Hannifin (NYSE: PH) to Sector Performer from Sector Underperformer.
  
• Sprint Nextel Corporation (NYSE: S) was upgraded to Outperform from Neutral at Credit Suisse.
  
• RBC Capital Markets upgraded LaSalle Hotel Properties (NYSE: LHO) to Top Pick from Outperform.