Analyst upgrades:

• Jefferies upgraded Autodesk (NASDAQ: ADSK) to Buy from Hold after the firm's channel checks indicated the company's business is stabilizing. Jefferies raised its target on shares to $27 from $20.
• Citigroup upgraded Veeco (NASDAQ: VECO) to Buy from Hold on expectations LED order momentum will continue and cost discipline will help margin leverage. Citi raised its target on shares to $24 from $8.
• Deutsche Bank upgraded Domtar (NYSE: UFS) to Buy from Hold on expectations earnings will improve meaningfully over the next year. The firm keeps a $24 price target on the stock.
• Varian (NASDAQ: VARI) was upgraded to Equal Weight from Underweight at Barclays.
• Air Products (NYSE: APD) was upgraded to Overweight from Neutral at JPMorgan.
• U.S. Steel (NYSE: X) was upgraded to Buy from Neutral at Goldman.

• Bernstein upgraded Amgen (NASDAQ: AMGN) to Outperform from Market Perform on valuation as it believes threats to the core business are priced in at current levels and upside catalysts may come from pipeline news. The firm raised its target on shares to $65 from $57.
• Stephens upgraded CyberSource (NASDAQ: CYBS) to Overweight from Equal Weight on valuation as it believes the recent pullback creates a buying opportunity. The firm raised its target on shares to $16 from $14.
• JPMorgan upgraded Magna (NYSE: MGA) and Tenneco (NYSE: TEN) to Overweight from Neutral on expectations global auto production has sequentially bottomed with European light vehicle production rebounding in Q2. The firm also sees a short-term trading opportunity in TRW Automotive (NYSE: TRW), but keeps a Neutral rating on the stock.
• SINA Corp. (NASDAQ: SINA) was upgraded to Conviction Buy from Buy at Goldman.
• Cogent Communications (NASDAQ: CCOI) was raised to Buy from Hold at Citigroup.

• Baird upgraded Western Digital (NYSE: WDC) and Seagate (NASDAQ: NSTX) to Outperform from Neutral citing better than expected industry conditions. The firm believes supply has tightened, resulting in price increases in certain market segments.
  
• RBC Capital upgraded XTO Energy (NYSE: XTO) to Outperform from Sector Perform citing free cash flow and stable growth.
  
• Goldman upgraded Manpower (NYSE: MAN) to Neutral from Sell and raised its target to $29 from $20 based on balanced risk/reward.
• Energy Conversion (NASDAQ: ENER) was upgraded to Buy from Neutral at Piper Jaffray.
  
• Infineon (NYSE: IFX) was raised to Hold from Sell at RBS.
  
• NetSuite (NYSE: N) was upgraded to Acummulate from Source of Funds at ThinkEquity.