Activist investor Carl Icahn is reportedly interested in taking another run at Delphi Corp. after a federal judge ordered the bankrupt auto parts supplier to open the sale of its assets to potential bidders, in addition to the previous offer from private-equity firm Platinum Equity.

Icahn's auto-parts company, Federal-Mogul Corp. (NASDAQ: FDML), had held discussions with Delphi, but the Presidential Task Force on the Auto Industry, which was set up by the Obama administration to oversee the restructuring of the U.S. auto industry, preferred the Platinum Equity deal.

• Barclays believes Disney (NYSE: DIS) is the best positioned company for "media's digital evolution." The firm upgraded shares to Overweight from Underweight and has a $32 target on shares.
  
• Oppenheimer upgraded Semtech (NASDAQ: SMTC) to Outperform from Perform after channel checks indicated improved inventory levels, better product mix, and market share gains. The firm set a $20 target on the stock.
  
• RBC Capital expects Rigel's (NASDAQ: RIGL) R788 in RA to achieve its primary endpoint in the Phase II trials. Shares were upgraded to Sector Perform from Underperform and the price target was raised to $8 from $6.
• WebMD (NASDAQ: WBMD) was upgraded to Accumulate from Sell at ThinkEquity.
  
• International Game Tech (NYSE: IGT) was raised to Conviction Buy from Neutral at Goldman.
  
• Infineon (NYSE: IFX) was lifted at Banc of America/Merrill to Buy from Neutral.

• RBC Capital believes software stock fundamentals have bottomed and that the next several quarters should see reduced earnings risk, easier comps, stimulus spending benefits, and lower FX headwinds. The firm upgraded Microsoft (NASDAQ: MSFT), Taleo (NASDAQ: TLEO), Digital River (NASDAQ: DRIV) and Symantec (NASDAQ: SYMC) to Outperform from Sector Perform.
  
• Rodman & Renshaw upgraded Provectus (OTC: PVCT) to Outperform from Market Perform. The firm has increased conviction in the success of the company's ongoing trial of PV-10 in melanoma.
  
• Citigroup upgraded shares of American Express (NYSE: AXP) to Hold from Sell as it believes the risk/reward is balanced at current levels and that there are signs of potential credit market stabilization. The firm raised its price target on shares to $16 from $9.
• Brinker (NYSE: EAT) was upgraded to Outperform from Market Perform at Wachovia.
  
• PG&E (NYSE: PCG) was raised to Outperform from Neutral at Credit Suisse.
  
• Federal-Mogul (NASDAQ: FDML) was lifted to Conviction Buy from Buy at Goldman.