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

• Polo Ralph Lauren (RL) to neutral from underperform at BofA/Merrill.
• Sigma-Aldrich (SIAL) to outperform from market perform at Leerink.
• Petrobras (PBR) to overweight from equal weight at Barclays.
• Silvercorp Metals (SVM) to buy from neutral at UBS.
• PROS (PRO) to buy from hold at Jefferies.
• Power Integrations (POWI) and Monolithic Power (MPWR) to buy from neutral at Roth Capital.
• Diodes (DIOD) to outperform from neutral at RW Baird.
• Whole Foods (WFMI) to hold from sell at Hapoalim.
• Sinclair Broadcast (SBGI) to overweight from neutral at JPMorgan.
• Sappi (SPP) to outperform from neutral at Macquarie.
• Alpha Natural (ANR) to buy from hold at BB&T.
• Watts Water (WTS) to buy from hold at Brean Murray.

Analyst upgrades:

• Piper Jaffray upgraded PetMed Express (NASDAQ: PETS) to Overweight from Neutral following the better-than-expected Q1 results. The firm raised its target on shares to $22 from $19.
• Deutsche Bank upgraded International Paper (NYSE: IP) and Packaging Corp. (NYSE: PKG) to Buy from Hold to reflect stabilization in the containerboard industry. The firm raised its target price on Packaging Corp. to $24 from $14, and on International Paper to $24 from $16.
• Bernstein upgraded Human Genome Sciences (NASDAQ: HGSI) to Outperform from Market Perform following the positive Phase III data for Benlysta in lupus.
• IBM (NYSE: IBM) was upgraded to Hold from Sell at Societe Generale.
• British Airways (OTC: BAIRY) was upgraded to Buy from Sell at Goldman.
• Continental AG (OTC: CTTAY) was upgraded to Hold from Sell at Citigroup.

• Deutsche Bank upgraded Spartech (NYSE: SEH) to Buy from Hold as it sees further upside following the company's "strong" Q2 results. The firm raised its target on shares to $10 from $2.50.
• Oppenheimer upgraded Clorox (NYSE: CLX) to Outperform from Underperform. The firm believes the company's FY10 outlook is conservative, providing room for upside, and that the valuation is compelling at current levels. Opco set a $70 price target on the stock.
• Goldman upgraded Steel Dynamics (NASDAQ: STLD) to Buy from Neutral and raised its target to $20 from $16, citing reduced balance sheet concerns following the capital raise. Note that AK Steel (NYSE: AKS) was downgraded to Neutral from Buy.
• PG&E (NYSE: PCG) was upgraded to Buy from Hold at Citigroup.
• Pool Corp. (NASDAQ: POOL) was upgraded to Outperform from Market Perform at William Blair.
• Liberty Property Trust (NYSE: LRY) was upgraded to Outperform from Market Perform at Wachovia.

Analyst upgrades:

• Baird upgraded Fifth Third Bancorp (NASDAQ: FITB), SunTrust (NYSE: STI) and Wells Fargo (NYSE: WFC) to Outperform from Neutral citing the ability to raise cheap capital following the Treasury's aggressive policy response.
  
• Keefe Bruyette upgraded First Security Group (NASDAQ: FSGI), Amcore Financial (NASDAQ: AMFI) and Seacoast Banking (NASDAQ: SBCF) to Outperform from Market Perform to reflect the benefits of the government's TARP program.
  
• Suntrust believes Zions Bancorp (NASDAQ: ZION) is disproportionately positioned to benefit from what should be a wave of industry fallout and consolidation over the next few years. Shares were upgraded to Buy from Neutral.
• Cadbury (NYSE: CBY) was raised to Hold from Sell at ING Group.
  
• Ericsson (NASDAQ: ERIC) was raised to Neutral from Sell at Goldman.
  
• Genentech (NYSE: DNA) was upgraded at Piper Jaffray to Buy from Neutral.

Analyst downgrades: