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

• Deutsche Bank upgraded CME Group (CME) to buy from hold to reflect valuation and the company's improving trends. The firm raised its target price for shares to $325 from $320.
• JPMorgan upgraded Big Lots (BIG) to overweight from neutral. The firm believes the company's stabilizing comps and accelerating square foot growth should drive multiple expansion and raised its target price for shares to $38.
• Soleil upgraded PacWest Bancorp (PACW) to buy from hold as it views the company's bulk loan sale positively. The firm has a $24.50 target on the stock.
• Clean Harbors (CLH) was upgraded to buy from neutral at BofA/Merrill.
• Skilled Healthcare (SKH) was upgraded to outperform from market perform at Leerink.
• FARO Tech (FARO) was upgraded to buy from hold at Needham.

Analyst upgrades:

• Target (NYSE: TGT) was upgraded two ratings to Buy from Sell at Citigroup, and it raised its price estimate on shares to $61 from $44. The firm sees significant earnings upside as the company's same-store sales improve and finds the valuation attractive at current levels.
• Motorola (NYSE: MOT) was upgraded to Outperform from Sector Perform at RBC Capital citing valuation, new product launches, and expectations that the Mobile Devices division will be profitable. The price target is $11.
• AK Steel (NYSE: AKS) was upgraded to Buy from Hold at Citigroup as it believes the company's Q3 results were solid and the China steel market is stabilizing. The firm raised its target to $21 from $17.
• Ceradyne (NASDAQ: CRDN) was upgraded at Wells Fargo to Market Perform from Underperform. The firm thinks that earnings expectations for the company have now reached more reasonable levels, limiting risk.
• FormFactor (NASDAQ: FORM) was upgraded to Outperform from Market Perform at FBR Capital ahead of the company's Q3 results due to valuation as it views the risk/reward on shares compelling. The firm raised its price target to $25 from $19.
• Texas Instruments (NYSE: TXN) was upgraded at Goldman to Buy from Neutral, citing 2H10 margin expansion and analog share gains. Target was raised to $29 from $27.
• Barrett Business Services (NASDAQ: BBSI) was upgraded to Buy from Hold at Roth Capital as the firm thinks the company will benefit from a labor market recovery next year. Roth notes that the stock's valuation has lagged behind most of its peers in recent months and it set an $18 target.