• Athenahealth (NASDAQ: ATHN) was initiated with a Neutral rating at Goldman Sachs. Jefferies started shares of the stock with a Buy rating and $46 target, as they believe their estimates could prove conservative given potential upside from new and existing physicians adopting athenaClinicals.
• Kaufman Bros initiated Marvell Technology (NASDAQ: MRVL) with a Hold rating and $18 target, as they believe near-term growth prospects remain uncertain and recommends waiting for more favorable entry points.
  
• The firm also initiated Broadcom Corporation (NASDAQ: BRCM) with a Hold rating and $35 target, and believes the company's growth prospects are priced into shares following the recent rally, and started shares of Nvidia Corporation (NASDAQ: NVDA) with a Buy rating and $42 target, as they believe the company's growth opportunity and competitive strength remain intact and would be buyers at current levels.

• Goldman started shares of Sara Lee (NYSE: SLE) with a Neutral rating and $16 target.
  
• UBS initiated US BioEnergy (NASDAQ: USBE) with a Neutral rating.
  
• Bear Stearns inititated CarMax (NYSE: KMX) with an Underperform rating.
  
• Wachovia started Teekay Offshore Partners (NYSE: TOO) and Holly Energy Partners (NYSE: HEP) with Market Perform ratings.

Analyst initiations: ATHN, MRVL, BRCM and NVDA originally appeared on BloggingStocks on Tue, 30 Oct 2007 11:15:00 EST. Please see our terms for use of feeds.

MOST NOTEWORTHY:

• JP Morgan downgraded shares of the NYSE Group Inc (NYSE: NYX) to Underweight from Neural to reflect their belief that the company's float will increase significantly in March due to the acquisition of Euronext and the lockup expiration. JP Morgan believes this could bring selling pressure.
  

• Credit Suisse downgraded shares of Patterson-UTI Energy (NASDAQ: PTEN) citing negative earnings impact from share losses and industry capacity additions.

• Shares of HomeBanc Corp (NYSE: HMB) were downgraded to Underperform from Market Perform with a $2.60 target at Friedman Billings based on continued losses and an unlikely sale given market conditions.

• Wachovia downgraded Hub International Ltd (NYSE: HBG) to Market Perform from Outperform following news of a private-equity acquisition for $40 a share.

• UBS downgraded Bed Bath & Beyond Inc (NASDAQ: BBBY) to Neutral from Buy on valuation.

• Citigroup downgraded Burlington Northern Santa Fe Corp (NYSE: BNI) to Hold from Buy.

• AG Edwards cut Teekay LNG Partners (NYSE: TGP) and Teekay Offshore Partners (NYSE: TOO) to Hold from Buy citing valuation.

• Raymond James downgraded shares of Marvel Entertainment Inc (NYSE: MVL) to Market Perform from Outperform.

• Lazard downgraded Thoratec Corp (NASDAQ: THOR) to Sell from Hold with a $15 target. They recommend selling shares ahead of a likely FDA decision to call an advisory panel for HeartMate II.

Analyst downgrades 2-27-07: NYSE Group & Marvel Entertainment downgraded today originally appeared on BloggingStocks on Tue, 27 Feb 2007 10:59:00 EST. Please see our terms for use of feeds.