Analyst upgrades:

• Goldman upgraded shares of British Sky Broadcasting (NYSE: BSY) to Buy from Neutral and added the company to the Conviction Buy List as they find the stock oversold at current levels.
  
• Goldman also added Publicis (OTC: PUBGY) to the Conviction Buy List and upgraded shares to Buy from Neutral as they find the stock cheap at current levels.
• Oneok (NYSE: OKE) was upgraded to Overweight from Equal Weight at Lehman.
  
• UBS raised Wimm-Bill-Dann Foods (NYSE: WBD) to Buy from Neutral.

Analyst downgrades:

• Baird downgraded Amylin Pharma (NASDAQ: AMLN) to Neutral from Outperform and said they are incrementally more cautious on the commercial performance of Amylin's Byetta following the yesterday's update. Amylin's target was lowered to $27 from $37. Soleil recommends investors avoid Amylin with the disclosure last night of four additional cases of mortality associated with pancreatitis in patients who were on Byetta. The firm cut shares to Sell from Hold and lowered their target to $20 from $25.
  
• Citigroup downgraded shares of AMR Corp. (NYSE: AMR) to Sell from Hold on valuation as they find the stock expensive following the recent run-up. The firm raised their target to $9 from $6.70 to reflect the drop in crude prices.
  
• J Crew (NYSE: JCG) was downgraded to Hold from Buy at Brean Murray following the weak Q2 report and guidance.
• JMP Securities downgraded Quality Systems (NASDAQ: QSII) to Market Perform from Outperform.
  
• National Grid (NYSE: NGG) was lowered to Equal Weight from Overweight at Lehman.

Analyst initiations:

MOST NOTEWORTHY: Citizens Republic Bancorp, Hess Corp and Sanderson Farms were today's noteworthy upgrades:

• Keefe Bruyette upgraded shares of Citizens Republic Bancorp (NASDAQ: CRBC) to Outperform from Market Perform on valuation following yesterday's sell-off, which they attribute in part to its removal from the Dow Jones Select Dividend Index. Shares were also raised to OUtperform from Perform at Oppenheimer following the sell-off.
  
• Goldman upgraded Hess (NYSE: HES) to Buy from Neutral citing the company's leverage to higher oil prices. The firm said oil is likely to hit $150-$200/bbl in the next 6-24 months.
  
• Stephens upgraded shares of Sanderson Farms (NASDAQ: SAFM) to Overweight from Equal Weight as they expect industry fundamentals to improve in FY09.

OTHER UPGRADES:

• Baird raised Stellent (NASDAQ: STEL) to OUtperform from Neutral.
  
• Friedman Billings upgraded Preferred Bank (NASDAQ: PFBC) to Market Perform from Underperform.
  
• Agco (NYSE: AG) was upgraded at Goldman to Buy from Neutral.
• Lehman upgraded SLM Corp (NYSE: SLM) to Overweight from Equal Weight.

MOST NOTEWORTHY: The environmental services sector, the machinery and capital goods sector and several bank holding companies were today's noteworthy initiations:

• Credit Suisse initiated shares of Allied Waste Industries Inc (NYSE: AW), Republic Services Inc (NYSE: RSG) and Waste Management Inc (NYSE: WMI) with Outperform ratings and a $16 target, $35 target and $45 target, respectively.
• Bernstein initiated the machinery and capital goods sector, initiating shares of Caterpillar Inc (NYSE: CAT) and Illinois Tool Works Inc (NYSE: ITW) with Outperform ratings and a $100 target and $68 target, respectively and Deere & Company (NYSE: DE), Eaton Corporation (NYSE: ETN), Ingersoll-Rand Company Ltd (NYSE: IR) and Parker-Hannifin Corporation (NYSE: PH) with Market Perform ratings.
• Sandler initiated shares of Preferred Bank Los Angeles CA (NASDAQ: PFBC) and UCBH Holdings, Inc (NASDAQ: UCBH) with Buy ratings and shares of Cathay General Bancorp (NASDAQ: CATY) and East West Bancorp, Inc (NASDAQ: EWBC) with Hold ratings.

OTHER INITIATIONS:

• Golfsmith International Holdings Inc (NASDAQ: GOLF) was initiated at Wedbush with a Buy rating and $8.75 target, as the firm believes the company is an attractive growth story and buyout candidate.
• Pharmasset Inc (NASDAQ: VRUS) was initiated with a Buy rating and $12 target at Banc of America, as the firm believes Clevudine has the potential to be best in class for the treatment of the hepatitis B virus.
• Ciena Corporation (NASDAQ: CIEN) was initiated with an Outperform rating and $40 target at Piper Jaffray.