Analyst Upgrades

• Time Warner Cable (TWC) was upgraded to outperform from market perform at Bernstein.
• Citigroup upgraded MEMC Electronic (WFR) and Skilled Healthcare (SKH) to buy from hold at Citigroup.
• Administaff (ASF) was upgraded to buy from hold at Roth Capital.
• The Buckle (BKE) was upgraded to buy from hold at KeyBanc.
• BofA/Merrill upgraded DreamWorks (DWA) to neutral from underperform.
• Corrections Corp. (CXW) was upgraded to buy from neutral at SunTrust.
• Marvell Technology (MRVL) was upgraded to positive from neutral at Susquehanna.

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: 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).

Generally, private equity firms focus on established companies -– which are usually underperforming. But, sometimes they will look at start-ups.

The process is known as a "leveraged buildup." Basically, a private equity firm will invest a large amount of money to back a top-notch management team. The team, in turn, will seek-out major acquisitions.

This is the case with Solera Holdings, which recently filed to go public.

Tony Aquila, the CEO, started Solera in February 2005 and got the financial support of GTCR, which is a marquee private equity firm.

At age 42, Aquila has a great resume. He was president of Mitchell International, a provider of software for the auto insurance industry. Before this, he started his own software processing company, Ensera (which, yes, he sold to Mitchell International in 1999).

Well, with a slug of capital, Aquila wasted little time. He purchased the Claims Services Group from ADP (NYSE: ADP) in April 13, 2006. The firm is a global software company that provides claims processing support.

In fiscal 2006, the company posted $430.2 million in revenues. And, the market opportunity is large – with more than 100 million claims filed each year worldwide.

With the IPO market perking-up, the prospects look promising for this offering (which will likely hit the market within a few months).

The ticker symbol is "SLH" and you can find the prospectus on the SEC web site.

Tom Taulli is the author of various books, including the Complete M&A Handbook and the EDGAR-Online Guide to Decoding Financial Statements.