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

• Goodrich (GR) to overweight from neutral at JPMorgan.
• Ford (F) to neutral from underperform and CenterPoint Energy (CNP) to outperform from neutral at Credit Suisse.
• Dollar Financial (DLLR) and Edwards Lifesciences (EW) to buy from hold at Jefferies.
• Alterra Capital (ALTE) to buy from hold at Deutsche Bank.
• Cheesecake Factory (CAKE) and P.F. Chang's (PFCB) to buy from neutral, as well as SunTrust (STI) to neutral from sell, at Janney Capital.
• Arch Capital (ACGL), Axis Capital (AXS), PartnerRe (PRE), Everest Re (RE) and Transatlantic (TRH) to buy from hold, as well as W. R. Berkley (WRB) to hold from sell, at Citigroup.
• Optimer Pharm (OPTR) to buy from neutral at BofA/Merrill.

Analyst Upgrades

• Bristol-Myers (BMY) to hold from underperform at Jefferies.
• Pep Boys (PBY) to buy from hold at Stifel Nicolaus.
• Tesla Motors (TSLA) to overweight from equal weight at Morgan Stanley.
• Emerson (EMR) to buy from hold at Deutsche Bank.
• ARM Holdings (ARMH) to buy from neutral at BofA/Merrill.
• NetLogic (NETL) and Cavium Networks (CAVM) to buy from hold at Auriga.
• Aimco (AIV) to hold from sell at Citigroup.
• Ceragon Networks (CRNT) to overweight from equal weight at Barclays.

Analyst Upgrades

• Philip Morris (PM) to conviction buy from buy at Goldman.
• Peet's Coffee (PEET) to neutral from sell at Janney Capital.
• Cephalon (CEPH) to equal weight from underweight at Morgan Stanley.
• StoneMor Partners (STON) to outperform from neutral at RW Baird.
• Tibco (TIBX) to buy from underperform at BofA/Merrill.
• Apollo Group (APOL) to outperform from market perform at BMO Capital.

Analyst Upgrades

• Marriott (MAR) to outperform from market perform at Wells Fargo.
• Quest Diagnostics (DGX) and Owens-Illinois (OI) to outperform from neutral at Credit Suisse.
• FirstMerit (FMER) to outperform from perform at Oppenheimer.
• Safeway (SWY) to hold from sell at Citigroup.
• Babcock & Wilcox (BWC) to buy from neutral, as well as Jacobs Engineering (JEC) and W. R. Berkley (WRB) to neutral from sell, at Goldman.
• Pioneer Natural (PXD) to overweight from equal weight at Barclays.
• Teekay Tankers (TNK) to buy from underperform at BofA/Merrill.

Analyst Upgrades

• Alcatel-Lucent (ALU) to buy from neutral at Goldman.
• Nvidia (NVDA) to outperform from market perform at JMP Securities.
• Verizon (VZ), AT&T (T), Leap Wireless (LEAP) and MetroPCS (PCS) to outperform from neutral at RW Baird.
• Illumina (ILMN) to buy from hold at Auriga.
• Sun Bancorp (SNBC) to neutral from sell at Janney Capital.
• American Tower (AMT), SBA Communications (SBAC) and Freeport McMoRan (FCX) to overweight from equal weight at Morgan Stanley.

Analyst Upgrades

• Akamai (AKAM) to overweight from neutral at Piper Jaffray.
• Las Vegas Sands (LVS) to buy from neutral at UBS.
• Aetna (AET) to Outperform from market perform at Leerink.
• Hot Topic (HOTT) to buy from neutral at Janney Capital.
• Colonial Properties (CLP) upgraded to Outperform from market perform at FBR Capital and to buy from hold at Citigroup.
• Altera (ALTR) to buy from hold at Citigroup.
• American Reprographics (ARC), CarMax (KMX) and American Campus (ACC) to outperform from neutral at RW Baird.
• Zebra Tech (ZBRA) to neutral from underweight at JPMorgan.
• IMAX (IMAX) to buy from hold at Canaccord.
• Basic Energy (BAS) to neutral from sell at Goldman.
• Mednax (MD) to buy from neutral at BofA/Merrill.
• UTi Worldwide (UTIW) to buy from hold at Stifel Nicolaus.

Analyst Upgrades

• Red Hat (RHT) to outperform from neutral at RW Baird.
• Cogdell Spencer (CSA) to buy from hold at Citigroup.
• Micron (MU) to neutral from reduce at Nomura.
• El Paso Electric (EE) to buy from hold at Jefferies.
• MICROS Systems (MCRS) and Harmony Gold (HMY) to outperform from sector perform at RBC Capital.
• Meridian Bioscience (VIVO) to buy from hold at Canaccord.
• Verso Paper (VRS) to outperform from neutral at Credit Suisse.
• Sony (SNE) to buy from hold at Deutsche Bank.
• Noble Corp. (NE) and Baker Hughes (BHI) to buy from neutral at UBS.
• Tyson Foods (TSN) and Smithfield Foods (SFD) to buy from hold at BB&T.

U.S. stock futures are higher Thursday morning as investors await economic data. Crude oil prices surged above $106 a barrel. Futures on the Dow Jones Industrial Average rose 44 points to 12,065 and S&P 500 futures gained 5.50 points to 1,297.60. Nasdaq 100 futures jumped 16 points to 2,281.

U.S. stocks closed higher Wednesday, with the Dow Jones Industrial Average rising 0.56% to 12,086, the S&P 500 index inching up 0.29% to 1,298 and the Nasdaq 100 index gaining 0.54% to 2,698.

Data on weekly jobless claims and durable-goods orders for February will be released at 8:30 a.m. ET.

Analyst Upgrades

• Bunge (BG) to buy from hold at Deutsche Bank.
• Textron (TXT) to overweight from neutral at JPMorgan.
• CSX (CSX) to buy from neutral and Pulte Group (PHM) to conviction buy from neutral at Goldman.
• Aol (AOL) to buy from neutral at UBS.
• Kohlberg Capital (KCAP) to outperform from market perform at JMP Securities.
• Owens Corning (OC) to buy from neutral at BofA/Merrill.
• Jefferies (JEF) to buy from neutral at Ticonderoga.
• Harris (HRS) to outperform from perform at Oppenheimer.

Analyst Upgrades

• Netflix (NFLX) and Zions Bancorp (ZION) to outperform from neutral at Credit Suisse.
• Akamai (AKAM) to buy from neutral at Merriman.
• CSX (CSX) to overweight from equal weight at Barclays.
• Nordstrom (JWN) to buy from neutral, WellCare (WCG) to conviction buy from buy and Humana (HUM) to neutral from sell at Goldman.
• E-Commerce China Dangdang (DANG) to overweight from neutral at Piper Jaffray.
• VMware (VMW) to buy from neutral at BofA/Merrill.
• Celanese (CE) to overweight from equal weight at Morgan Stanley.

Analyst Upgrades

• Siemens (SI) to buy from hold at Deutsche Bank.
• Diamond Offshore (DO) to market perform from underperform at FBR Capital.
• MeadWestvaco (MWV) to conviction buy from neutral at Goldman.
• TD AmeriTrade (AMTD) and Cabot Oil & Gas (COG) to buy from neutral at BofA/Merrill.
• Janus Capital (JNS) to hold from sell at Citigroup.
• Motorola Mobility (MMI) to buy from neutral at UBS.
• Frontier Communications (FTR) to neutral from underperform at Macquarie.
• Humana (HUM) to buy from hold at Argus.

Analyst Upgrades

• Cree (CREE) and Rubicon Technology (RBCN) to buy from neutral at Merriman.
• Children's Place (PLCE) to outperform from market perform at BMO Capital.
• Lockheed Martin (LMT) to neutral from underperform at BofA/Merrill.
• Copano Energy (CPNO) to outperform from market perform at Morgan Keegan.
• Motorola Mobility (MMI) to neutral from reduce at Nomura.
• Parker-Hannifin (PH) to buy from hold at KeyBanc.
• Akamai (AKAM), ShoreTel (SHOR), AMB Property (AMB) and ProLogis (PLD) to buy from hold at Stifel Nicolaus.

Analyst Upgrades

• BB&T (BBT) and Aflac (AFL) to buy from hold at Deutsche Bank.
• Kodiak Oil & Gas (KOG) to outperform from neutral at RW Baird.
• Zhongpin (HOGS) to neutral from reduce at Global Hunter.
• Marathon Oil (MRO), Noble Energy (NBL) and Manulife Financial (MFC) to buy from neutral at UBS.
• Carrizo Oil & Gas (CRZO) to buy from hold at Canaccord.
• Comerica (CMA) to buy from neutral at Rochdale.

Analyst Upgrades

• Exxon Mobil (XOM), Netflix (NFLX), Noble Corp. (NE), Pioneer Natural (PXD) and Noble Energy (NBL) to buy from neutral at Goldman.
• Cenovus Energy (CVE) to conviction buy from neutral and Atwood Oceanics (ATW) to neutral from sell at Goldman as well.
• Southern Company (SO) to buy from hold at Citigroup.
• Chevron (CVX) to buy from neutral at BofA/Merrill.
• Ryder (R), Entergy (ETR) and Seaspan (SSW) to buy from hold at Jefferies.
• Gerdau (GGB), Crown Castle (CCI) and American Tower (AMT) to buy from neutral at UBS.
• Aon (AON) and Willis Group (WSH) to buy from neutral at Janney Capital.
• Ryland Group (RYL) to buy from neutral at Ticonderoga.