Analyst upgrades:

• Citigroup upgraded Kraft Foods (NYSE: KFT) to Buy from Hold as it believes the company's domestic retail business is improving while input cost inflation pressures are beginning to moderate. Citi raised its target on shares to $32 from $28.
• Jefferies upgraded Sybase (NYSE: SY) to Buy from Hold as it believes slowing core IPG licenses in the second half of 2009 are now reflected in guidance. The firm raised its target on shares to $41 from $34.
• Canaccord said Apple's (NASDAQ: AAPL) decision to ad video functionality into the iPod lineup is "very positive" as it expands its market into the low-end camcorder area. The firm, which upgraded shares to Buy from Hold and raised its target to $200 from $150, also views the launch of iPhone 3GS in all countries by the end of Q4 as another catalyst.
• Rio Tinto (NYSE: RTP) was upgraded to Buy from Hold at Societe Generale.
• Renasant Corp. (NASDAQ: RNST) was upgraded to Overweight from Equal Weight at Stephens.
• America Movil (NYSE: AMX) was upgraded to Neutral from Sell at Pali Capital.