Analyst Upgrades

• Electronic Arts (ERTS) to overweight from neutral at Piper Jaffray.
• Helix Energy (HLX) to overweight from equal weight at Morgan Stanley.
• Quest Software (QSFT) to neutral from sell at Goldman.
• LTX-Credence (LTXC) to buy from hold at Needham.
• Anadarko (APC) to buy from hold at Canaccord.
• Walgreen (WAG) to hold from sell at Citigroup.
• Pericom (PSEM) to buy from hold at ThinkEquity.

MOST NOTEWORTHY: Nvidia, Entropic Comm and Cleveland Cliffs were today's noteworthy initiations:

• Piper initiated Nvidia (NASDAQ: NVDA) with a Neutral rating and $23 target and believes the rate at which the company gained market share over the past two years is unsustainable. The firm expects EPS deceleration over the next few years.
  
• Piper believes Entropic Comm (NASDAQ: ENTR) is a key benefactor from the general adoption of high definition video consumer goods, as well as from growth in multi-room DVRs. The firm assumed shares with a Buy rating and $10 target.
  
• Cleveland Cliffs (NYSE: CLF) was started with a Buy rating and $135 target at Deutsche Bank. The firm believes CLF is a leveraged play on bulk commodities' momentum.

OTHER INITIATIONS:

• Merrill initiated Allied Capital (NYSE: ALD) with a Neutral rating.
  
• Stifel initiated Blue Nile (NASDAQ: NILE) with a Buy rating and $54 target, and initiated Bank of Florida (NASDAQ: BOFL) with a Buy rating.

Entropic Communications (NASDAQ: ENTR), which develops home networking semiconductors, tried to price its IPO at $9 to $11. But investors thought the valuation was too rich. So, the deal came out at $6 per share. In all, the company raised $41.3 million.

No doubt, Entropic is in a hot space -- helping deliver video and music to homes (through cable set-top boxes). According to a study from iSuppli, the global market for home networking silicon is forecast to grow from $1.1 billion in 2007 to $3.1 billion by 2011.

Entropic has 55 customers, which includes biggies like Motorola (NYSE: MOT) and Jabil Circuit. The company also has key strategic investors, such as Cisco (NASDAQ: CSCO).

And, for the first nine months of this year, revenues spiked from $24.9 million to $82.4 million.

The lead underwriters include Credit Suisse (NYSE: CS) and Lehman Brothers (NYSE: LEH). You can find the prospectus at the SEC website. Also, for other recent IPO information, visit DealProfiles.com.

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