• Bear Stears upgraded the ocean shippers sector to Market Weight from Market Underweight, citing higher day rates in the dry bulk market. The firm sees potential upside for dry bulk firms Eagle Bulk Shipping (NASDAQ: EGLE), Quintana Maritime Limited (NASDAQ: QMAR) and Ultrapetrol Ltd (NASDAQ: ULTR).
  
• Bernstein raised shares of Tesoro Corporation (NYSE: TSO) to Outperform from Market Perform and expects a rebound in West Coast refining margins.
  
• ING upgraded shares of Siemens AG (NYSE: SI) to Buy from Hold on valuation and the possibility the company may exit businesses.
  
• MGI Pharma (NASDAQ: MOGN) was upgraded at JP Morgan to Overweight from Neutral, citing expectations for a strong Q3, Aloxi re-acceleration, Dacogen growth, and Auqavan opportunity.

• UBS upgraded shares of Agnico-Eagle (NYSE: AEM) to Buy from Neutral.
  
• Banc of America upgraded Everest RE Group (NYSE: RE) and PartnerRe (NYSE: PRE) to Buy from Neutral.
  
• Calamos Asset Management (NASDAQ: CLMS) was upgraded to Neutral from Sell at Goldman Sachs.

Analyst upgrades: Ocean shippers, TSO, SI and MOGN originally appeared on BloggingStocks on Wed, 10 Oct 2007 10:45:00 EST. Please see our terms for use of feeds.