Analyst upgrades:

• Goldman upgraded Bed Bath & Beyond (NASDAQ: BBBY) to Buy from Neutral based on valuation and a potential margin rebound at Linens N' Things.
  
• Citigroup upgraded Rockwell Automation Inc. (NYSE: ROK) to Hold from Sell on valuation and believes expectations have been reset to a reasonable level. The company's target was lowered to $27 from $33.
  
• Friedman Billings upgraded shares of Ceradyne (NASDAQ: CRDN) to Outperform from Market Perform on valuation following the recent weakness and thinks the Army will move forward with a larger XSAPI procurement in FY09. The firm raised their target to $30 from $26.
• Goldman added Wyeth (NYSE: WYE) to the Conviction Buy List.
  
• Equity Residential (NYSE: EQR) was upgraded to Buy from Neutral at UBS.
  
• Analog Devices (NYSE: ADI) was raised to Overweight from Equal Weight at Morgan Stanley.

Analyst downgrades:

Results for the tech stocks in last week's preview were a mixed bag, some beats, some misses, some in line. By and large, expectations for tech companies reporting results this week remain high, though. Here's what analysts surveyed by Thomson Financial are anticipating in the way of earnings, as compared to the same period of the previous year.

• Solarfun Power Holdings Co. Ltd. (NASDAQ: SOLF): $1.48 EPS (+73.0%) on sales of $1.3 billion (+171.0%)
• Marvell Technology Group Ltd. (NASDAQ: MRVL): $0.21 EPS (+71.4%) on sales of $836.7 million (+27.4%)
• Solera Holdings Inc. (NYSE: SLH): $0.29 EPS (+51.7%) on sales of $137.0 million (+11.8%)
• Applied Signal Technology Inc. (NASDAQ: APSG): $0.14 EPS (+42.9%) on sales of $46.4 million (+17.4%)
• China Finance Online Co. Ltd. (NASDAQ: JRJC): $0.14 EPS (+42.6%) on sales of $13.3 million (+131.5%)
• OSI Systems Inc. (NASDAQ: OSIS): $0.38 EPS (+36.8%) on sales of $162.0 million (+6.0%)
• LaBarge Inc. (AMEX: LB): $0.27 EPS (+33.3%) on sales of $71.6 million (+10.4%)
• Esterline Technologies Corp. (NYSE: ESL): $0.69 EPS (+11.6%) on sales of $374.6 million (+14.8%)
• Dell Inc. (NASDAQ: DELL): $0.36 EPS (+11.1%) on sales of $15.9 billion (+7.8%)
• HEICO Corp. (NYSE: HEI): $0.46 EPS (+13.0%) on sales of $147.1 million (+10.5%)
• Daktronics Inc. (NASDAQ: DAKT): $0.17 EPS (flat) on sales of $141.5 million (+17.0%)
• Novell Inc. (NASDAQ: NOVL): $0.05 EPS (flat) on sales of $241.4 million (-0.7%)
• Omnivision Technologies Inc. (NASDAQ: OVTI): $0.29 EPS (-17.1%) on sales of $172.5 million (-0.4%)
• Sigma Designs Inc. (NASDAQ: SIGM): $0.39 EPS (-18.8%) on sales of $58.7 million (+37.9%)

MOST NOTEWORTHY: Penske Automotive, CarMax, Towerstream, Solera and Northstar were today's noteworthy initiations:

• Kevin Dann initiated shares of Penske Automotive Group Inc (NYSE: PAG) with a Buy rating and $25 target. The firm believes shares deserve a higher multiple given the company's reduced exposure to slower growing domestic brands combined with the increased penetration o luxury as a percentage of industry sales.
  
• CarMax Inc (NYSE: KMX) was also initiated at Kevin Dann with a Buy rating and $28 target, as they expect the multiple expansion to continue as confidence builds in the company's sales and expense strategy.
  
• Think Equities started shares of Towerstream Corporation (NASDAQ: TWER) with a Buy rating and $5 target and said the company is rapidly growing given robust demand fro high bandwidth services, market expansion, sales force growth, and higher ARPU services.
  
• Barrington believes Solera Holdings Inc (NYSE: SLH) is positioned to capture growth through technology adoption in claims processing by insurance companies, starting shares off with an Outperform rating and $27 target.
  
• Jefferies resumed coverage of Northstar Neuroscience Inc (NASDAQ: NSTR) with a Buy rating and $21 target, as they expect the company's Phase III EVEREST trial to yield positive positives, setting the stage for an FDA approval by Q109.

OTHER INITIATIONS:

• Friedman Billings started shares of IPG Photonics Corporation (NASDAQ: IPGP) with an Outperform rating and $28 target and added shares to its Top Picks List.
  
• The firm also resumed coverage of Rofin-Sinar Technologies Inc (NASDAQ: RSTI) with an Outperform rating and $92 target.
  
• ABN Amro started China Netcom Group Corporation (NYSE: CN) with a Hold rating and China Mobile Limited (NYSE: CHL) and China Unicom Limited (NYSE: CHU) with Buy ratings.
  
• UBS started RSC Holdings Inc (NYSE: RRR) with a Neutral rating.

MOST NOTEWORTHY: Banco Santander, Solera, FTI Consulting and Blue Coat Systems were today's noteworthy initiations:

• Societe Generale expects the Banco Santander's (NYSE: STD) strong organic growth in earnings to continue with the purchase of ABN Amro's (NYSE: ABN) assets in Brazil and Italy, starting shares off with a Buy rating. Shares were started at Merrill Lynch with a Neutral rating.
  
• William Blair initiated Solera Holdings (NYSE: SLH) with an Outperform rating, as they believe underlying trends for auto insurance claims are favorable.
  
• FTI Consulting (NYSE: FCN) was initiated at Deutsche Bank, as they believe the company is positioned to sustain double-digit growth, and with a Buy rating and $65 target and at Goldman with a Neutral rating and $62 target.
  
• Pacific Crest initiated Blue Coat Systems (NASDAQ: BCSI) with a Sector Perform rating on valuation and estimates fair value at $50/share.

OTHER INITIATIONS:

• BNP Paribas started shares of China Netcom (NYSE: CN) and China Telecom (NYSE: CHA) with Buy ratings and China Mobile Limited (NYSE: CHL) with a Hold rating.
  
• Cosan Limited (NYSE: CZZ) was initiated with a Neutral rating at Goldman.
  
• Methanex Corporation (NASDAQ: MEOH) was started at HSBC with an Overweight rating.

Wall Street's equity market offers a full schedule this week, with 8 IPOs and 5 Secondaries on the docket.

Those deals tentatively scheduled to price include:

IPOs:

Possible

• Merrion Pharmaceuticals (MERR), a 4M-share IPO for this pharmaceuticals company. Punk Zeigel is the lead manager. Filing range: $10.00-$12.00.

Early Week

• Liberty Acquisition (LIA), an 86.25M-share IPO for this reorganization services company. Citigoup is the lead manager.

MOST NOTEWORTHY: Time Warner Cable , Solera Holdings (SLH) and BioDel (BIOD) filled this morning's initiation list:

• Wachovia is positive on Time Warner Cable's (NYSE: TWC) competitive position, growth opportunities and valuation, starting shares off with an Outperform rating...

• Solera (NYSE: SLH) was initiated at Deutsche Bank and Citigroup with a Hold rating; Goldman started Solera with a Buy rating and JP Morgan initiated shares with an Overweight rating...

• BioDel (NASDAQ: BIOD) was initiated at Banc of America with a Buy rating, as the company's proprietary technology Viadel enables faster uptake of insulin that more closely mimic's the body's natural first phase insulin response. Leerink started shares with an Outperform and Morgan Stanley initiated shares with an Overweight rating...

OTHER INITIATIONS:

• UBS started Under Armour (NYSE: UA) with a Buy rating.

• Pinnacle Gas Resources (NASDAQ: PINN) was initiated with a Sector Perform rating at RBC Capital.

• FTI Consulting (NYSE: FCN) was initiated with a Buy rating at Stifel.

• UBS initiated Tyco International (NYSE: TYC) with a Buy rating.

• A.S.V. Inc (NASDAQ: ASVI) was initiated with a Buy rating at Oppenheimer.

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