Analyst upgrades:

• Citigroup upgraded Emergency Medical Services (NYSE: EMS) to Hold from Sell as it believes earnings estimates and valuation multiples could expand should Congress extend insurance coverage to the currently uninsured. The firm raised its target on shares to $38 from $29.
• JPMorgan upgraded Deutsche Bank (NYSE: DB) to Neutral from Underweight on expectations the company's fixed income business will drive earnings.
• KeyBanc expects U.S. Steel (NYSE: X) to benefit from a global recovery in flat-rolled products and a potential stabilization in energy end markets. The firm upgraded shares to Buy from Hold.
• Yahoo! (NASDAQ: YHOO) was upgraded to Buy from Hold at Soleil.
• Pinnacle Financial (NASDAQ: PNFP) was upgraded to Equal Weight from Underweight at Stephens.
• BP Plc (NYSE: BP) was raised to Buy from Hold at ING Group.

MOST NOTEWORTHY: Anadigics, American Axle and Caterpillar were today's noteworthy downgrades:

• Stephens downgraded shares of Anadigics (NASDAQ: ANAD) following the company's Q2 results, as they believe shares could trade sideways until the macro environment improves. The firm lowered their target to $9 from $14. Jefferies downgraded shares to Hold from Buy to reflect the company's lower than expected outlook. The firm lowered their target to $9 from $15.
• Deutsche Bank cut American Axle (NYSE: AXL) to Hold from Buy to reflect the risk associated with the company's exposure to General Motors (NYSE: GM) and Chrysler. The firm lowered their target price to $7.50 from $11.
  
• JP Morgan downgraded Caterpillar (NYSE: CAT) to Neutral from Overweight based on increasing macro headwinds and likely multiple pressure.

OTHER DOWNGRADES:

• Washington Mutual (NYSE: WM) was cut to Sell from Neutral at Piper.
  
• United Microelectronic (NYSE: UMC) was downgraded to Sell from Neutral at Goldman.
  
• Downey Financial (NYSE: DSL) and City National (NYSE: CYN) were lowered to Market Perform from Outperform at Keefe Bruyette.

MOST NOTEWORTHY: Kelly Services, Iron Mountain, Covenant Transportation and the biotech sector were today's noteworthy upgrades:

• Merrill Lynch upgraded Kelly Services Inc (NASDAQ: KELYA) to Neutral from Sell and Iron Mountain Incorporated (NYSE: IRM) to Buy from Neutral after they adjusted estimates in the group to reflect risks of a recession in the U.S.
  
• AG Edwards upgraded shares of Covenant Transportation Group (NASDAQ: CVTI) to Buy from Hold as they believe the stock is oversold after the company was able to renegotiate its debt covenants without significant cost increases.
• Bernstein upgraded the biotech sector citing valuation and typical seasonality for the group. The firm reiterated shares of Amgen Inc (NASDAQ: AMGN), Genentech Inc (NYSE: DNA), Gilead Sciences Inc (NASDAQ: GILD), Celgene Corporation (NASDAQ: CELG) and Vertex Pharmaceuticals (NASDAQ: VRTX) with Outperform ratings...

OTHER UPGRADES:

• Netflix Inc (NASDAQ: NFLX) was upgraded to Hold from Sell at Wedbush. The firm also upgraded shares of Kenexa Corporation (NASDAQ: KNXA) to Buy from Hold.
  
• Deutsche Bank upgraded shares of United Microelectronics (NYSE: UMC) to Buy from Hold.
  
• UBS upgraded shares of Royal Dutch Shell (NYSE: RDS.A) to Buy from Neutral on valuation.
  
• Lehman Brothers upped regulated utilities to Neutral from Negative, and Public Service Enterprise Group (NYSE: PEG) and Wisconsin Energy Corporation (NYSE: WEC) to Overweight from Equal Weight.