Analyst upgrades:

• Goldman upgraded Baidu (NASDAQ: BIDU) to Buy from Neutral and added shares to its Conviction Buy List. The analyst expects Baidu to benefit from growth in paid search in China, where growth is expected to be 30% annually.
  
• Friedman Billings upgraded shares of Corporate Office Properties (NYSE: OFC) to Outperform from Market Perform to reflect the company's exposure to the "sound" Washington, D.C., market and "favorable" liquidity position.
  
• Soleil upgraded Sunoco (NYSE: SUN) to Buy from Hold and raised its target to $45 from $38 on the strength of the company's non-refining segment.
• Mosaic (NYSE: MOS), Potash (NYSE: POT), Intrepid Potash (NYSE: IPI) and Terra Industries (NYSE: TRA) were upgraded to Buy from Neutral at Merrill Lynch.
  
• Kroger (NYSE: KR) was upgraded to Neutral from Underweight at JP Morgan.

Analyst downgrades:

• Jefferies downgraded shares of Bronco Drilling (NASDAQ: BRNC) to Underperform from Hold and lowered its target to $4.50 from $7.50 on valuation and their expectations for a rig decline in U.S. drilling activity.
  
• Morgan Stanley cut Credit Suisse (NYSE: CS) to Equal Weight from Overweight into reporting season on concerns of further impairment charges.
  
• Deutsche Bank downgraded Ericsson (NASDAQ: ERIC) to Sell from Hold to reflect challenges in the handset market.
• Alcatel-Lucent (NYSE: ALU) was lowered to Sell from Hold at WestLB.
  
• BT Group (NYSE: BT) was slashed at JP Morgan to Underweight from Neutral.
  
• Sovereign Bancorp (NYSE: SOV) was downgraded to Market Perform from Outperform at Keefe Bruyette.

Analyst initiations:

MOST NOTEWORTHY: Genentech, Digital River and Entercom Comm were today's noteworthy downgrades:

• Jefferies downgraded Genentech (NYSE: DNA) to Hold from Buy and lowered their target to $67 from $85 following the panel vote against Avastin approval for first-line metastatic beast cancer. They believe an FDA approvable letter with request for more data is the most likely outcome on the 2/23/08 PDUFA date and lowered their estimates.
• Deutsche Bank downgraded Digital River (NASDAQ: DRIV) to Hold from Buy, as they expect shares to remain range-bound in the near-term given expectations or slower growth in 2008 and a lack of diversification away from Symantec (NASDAQ: SYMC).
• Entercom Comm (NYSE: ETM) was lowered to Market Perform from Outperform at Wachovia following a revision in the firm's long-term growth rate for radio.

OTHER DOWNGRADES:

• Wachovia downgraded the REIT office sector to Market Weight from Overweight, downgrading Corporate Office Properties (NYSE: OFC), Maguire Properties (NYSE: MPG) and Parkway Properties (NYSE: PKY) to Market Perform from Outperform.

MOST NOTEWORTHY: New York Times Co (NYT), New York Community Bancorp, Inc (NYB), Cadbury Schweppes plc (CSG), International Paper Co (IP) and TurboChef Technologies, Inc (OVEN) were today's noteworthy upgrades:

• JP Morgan upgraded shares of the New York Times Co (NYSE: NYT) to Neutral from Underweight to reflect easier advertising sales comparisons the rest of the year and the possibility for a stepped-up buyback program.

• Friedman Billings upgraded New York Community Bancorp (NYSE: NYB) to Market Perform from Underperform with an $18 target.

• Bernstein upgraded shares of Cadbury Schweppes (NYSE: CSG) to Outperform from Market Perform and revised its sum-of-the-parts and "real options" analysis. The firm still sees major upside and limited downside at these levels.

• Matrix believes higher selling prices and lower costs are improving profit margins at International Paper (NYSE: IP).

• TurboChef Technologies (NASDAQ: OVEN) was upgraded to Sector Perform from Underperform following Q1 results...

OTHER UPGRADES:

• Citigroup upgraded H.J. Heinz Co (NYSE: HNZ) to Buy from Hold with a $52 target.

• AG Edwards raised Corporate Office Properties Trust (NYSE: OFC) to Buy from Hold.

• Baird transitioned coverage of Pike Electric Corp (NYSE: PEC) with an Outperform rating, up from Neutral.

• Medical Properties Trust, Inc (NYSE: MPW) was upgraded to Buy from Hold at Stifel.

• Buckingham raised Eaton Corp (NYSE: ETN) to Strong Buy from Accumulate.

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