MOST NOTEWORTHY: Google, Boyd Gaming and Microsoft were today's noteworthy initiations:

• Kaufman Bros. believes Google (NASDAQ: GOOG) has "only begun to scratch the surface" of its local market opportunity. Shares were assumed with a Buy rating and $680 target.
  
• Banc of America believes Boyd Gaming (NYSE: BYD) will face financing challenges with its Echelon resort, and initiated shares with a Sell rating and $14 target.
  
• Lehman reinstated Microsoft (NASDAQ: MSFT) with an Equal Weight rating and $34 target based on peaking Vista/Office 2007 cycles, uncertain online strategy, and increased investment.

OTHER INITIATIONS:

• Goldman started AON Corp. (NYSE: AOC) with a Neutral rating.
  
• Broadpoint initiated Covanta (NYSE: CVA) with a Buy rating and $32 target.
  
• Companhia Vale Do Rio Doce (NYSE: RIO) was assumed at Citigroup with a Buy rating and $48 target.

MOST NOTEWORTHY: RF Micro Devices, Western Digital and Boyd Gaming were today's noteworthy downgrades:

• Jefferies downgraded shares of RF Micro Devices (NASDAQ: RFMD) to Hold from Buy to reflect the continued softness in the China Market after Asian channel checks suggested the March quarter will be weak.
  
• Citigroup downgraded shares of Western Digital (NYSE: WDC) to Hold from Buy, as they believe the HDD industry is nearing a cyclical peak. They also view the likelihood of consolidation as less likely given the current conditions.
  
• Boyd Gaming (NYSE: BYD) was lowered to Neutral from Add at Calyon following its Q4 report.

OTHER DOWNGRADES:

• JP Morgan downgraded BorgWarner (NYSE: BWA), Lea Corporation (NYSE: LEA) and TRW Automotive Holdings (NYSE: TRW) to Neutral from Overweight.
  
• Merrill lowered Edison International (NYSE: EIX) to Neutral from Buy.

MOST NOTEWORTHY: Three food companies, TiVo Inc (TIVO), Circuit City Stores, Inc (CC) and AutoZone, Inc (AZO) were today's most noteworthy downgrades:

• Deutsche Bank downgraded Groupe Danone (NYSE: DA), Unilever (NYSE: UL) and Nestle (OTC: NSRGY) to Hold from Buy as the firm believes the three food producers will suffer from rising prices for agricultural commodities.

• SMH Capital downgraded shares of TiVo (NASDAQ: TIVO) to Sell from Hold on valuation as the firm believes the market has already priced in considerable penetration of the new TIVO/Comcast bundled DVR into Comcast's (CMCSK) core digital sub base.

• Matrix downgraded Circuit City Stores (NYSE: CC) to Strong Sell from Hold as the firm believes increasing competition is leading to lower selling prices and decreasing profits.

• BMO Capital cut AutoZone (NYSE: AZO) to Underperform from Market Perform on expectations that higher gas prices will be a drag on discretionary product sales...

OTHER DOWNGRADES:

• Goldman added Applied Materials, Inc (NASDAQ: AMAT) to its Americas Conviction Sell List.

• Oppenheimer downgraded Federated Department Stores (NYSE: FD) to Neutral from Buy.

• STEC, Inc (NASDAQ: STEC) was cut to Neutral from Buy at Merrill Lynch and to Sector Perform from Outperform at CIBC after weak Q1 results.

• Boyd Gaming Corp (NYSE: BYD) was cut to Market Perform from Outperform at BMO Capital.

• Baird downgraded Amgen, Inc (NASDAQ: AMGN) to Neutral from Outperform.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

MOST NOTEWORTHY: Embarq Corp (EQ) and Boston Scientific Corp (BSX) were today's most notable downgrades:

• Goldman Sachs downgraded Embarq Corp (NYSE: EQ) to Sell from Neutral based on valuation and potential margin dilution.

• Boston Scientific Corp (NYSE: BSX) was downgraded to Peer Perform from Outperform at Bear Stearns based on regulatory and competitive challenges.

OTHER DOWNGRADES:

• Despite expectations of strong Q4 results and 2007 guidance, Needham downgraded Garmin Ltd (NASDAQ: GRMN) to Hold from Buy based on valuation, as they believe the multiple the market is willing to give the stock is likely to decline as PNDs continue to increase as a percentage of revenue.

• Roth Capital downgraded China BAK Battery Inc (NASDAQ: CBAK) to Hold from Buy.

• DA Davidson downgraded Weyerhaeuser Co (NYSE: WY) to Neutral from Buy.

• BMO Capital Markets downgraded Brady Corp (NYSE: BRC) to Market Perform from Outperform.

• Wachovia downgraded Boyd Gaming Corp (NYSE: BYD) to Market Perform from Outperform, expecting weakness in 2007 from the Las Vegas locals market and Atlantic City.

• Penn National Gaming Inc (NASDAQ: PENN) was downgraded to Hold from Buy at Deutsche Bank citing valuation.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

MOST NOTEWORTHY: Fortune Brands (FO) and Altria Group (MO) were today's more notable downgrades:

• JP Morgan downgraded Fortune Brands (NYSE: FO) to Neutral from Overweight on valuation and the weak outlook for home and hardware sales.

• Altria Group (NYSE: MO) was downgraded by Deutsche Bank to Hold from Buy with a $95 target, citing its valuation, ex-Kraft, is more in line with its tobacco peers.

OTHER DOWNGRADES:

• CheckPoint Software Tech (NASDAQ: CHKP) was downgraded to Underperform from Market Perform with a $19 target at Freedman Billings, with expectations that 2007 will be a difficult transition year.

• Matrix USA downgraded shares of Boyd Gaming (NYSE: BYD) to Hold from Buy on valuation.

• Goldman Sachs downgraded TRW Automotive Hldg (NYSE: TRW) to Sell from Neutral and was added to the America's Sell List; they believe rising costs, a less favorable product mix and commercial steering business headwinds will weigh on revenue growth and margins in 2007.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).