Analyst Upgrades

• Bristol-Myers (BMY) to hold from underperform at Jefferies.
• Pep Boys (PBY) to buy from hold at Stifel Nicolaus.
• Tesla Motors (TSLA) to overweight from equal weight at Morgan Stanley.
• Emerson (EMR) to buy from hold at Deutsche Bank.
• ARM Holdings (ARMH) to buy from neutral at BofA/Merrill.
• NetLogic (NETL) and Cavium Networks (CAVM) to buy from hold at Auriga.
• Aimco (AIV) to hold from sell at Citigroup.
• Ceragon Networks (CRNT) to overweight from equal weight at Barclays.

Analyst Upgrades

• Cisco (CSCO) to outperform from perform at Oppenheimer.
• Cognizant (CTSH) to buy from neutral at Goldman.
• Polypore (PPO) to outperform from neutral at RW Baird.
• Elan (ELN) to buy from neutral at UBS.
• Millicom (MICC) and NuStar GP Holdings (NSH) to overweight from equal weight at Morgan Stanley.
• Teekay LNG (TGP) to equal weight from underweight at Morgan Stanley.
• American Railcar (ARII) to outperform from market perform at Morgan Keegan.
• Texas Instruments (TXN) to buy from neutral at Sterne Agee.

MOST NOTEWORTHY: Ingram Micro (IM), SYNNEX Corp (SNX), Yahoo! (YHOO), Macquarie Infrastructure (MIC) and Polypore International (PPO) were today's noteworthy initiations:

• Banc of America assumed coverage of Ingram Micro (NYSE: IM) with a Buy rating and $23 target, as the firm is positive on the company's balanced growth and margin expansion.

• Banc of America also initiated shares of SYNNEX Corp (NYSE: SNX) with a Buy rating and $24 target, as they believe cost synergies and mix in 2007 will drive 2008 leverage and share appreciation.

• ThinkEquity transferred coverage of Yahoo! (NASDAQ: YHOO) with an Accumulate rating and cut its target to $27. ThinkEquity believes Yahoo!'s challenges, which include employee turnover risk, slower user growth, competitive pressures and limited upside in search, are unlikely to be fixed near-term by the new team of management.

• Macquarie Infrastructure (NYSE: MIC) was initiated with a Buy rating and $51 target at Citigroup, as the firm believes management fee concerns are priced into shares and that the recent acquisition of Mercury Air and San Jose Jet Center will drive a 6% increase in dividend by the end of 2007.

• Bear Stearns started Polypore International (NYSE: PPO) with a Peer Perform rating on valuation.

OTHER INITIATIONS:

• BMO Capital initiated shares of Hewlett-Packard (NASDAQ: HPQ), Dell (NASDAQ: DELL) and Western Digital (NYSE: WDC) with an Outperform rating and shares of Seagate Technology (NYSE: STX) with a Market Perform rating.

• Leerink Swann started shares of Applied Biosystem (NYSE: ABI) with an Outperform rating.

• Lehman Brothers initiated shares of Blackstone Group (NYSE: BX) with an Overweight rating and $32 target.

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