Analyst Upgrades

• Aetna (AET) to buy from neutral at Goldman.
• Kellogg (K) to buy from neutral at UBS.
• PetSmart (PETM) to outperform from market perform at JMP Securities.
• NetApp (NTAP) and Scripps Networks (SNI) to buy from hold at Wunderlich.
• Thoratec (THOR) to buy from hold at Auriga.
• ArcelorMittal (MT) to overweight from neutral at HSBC.
• Bristol-Myers (BMY) to outperform from neutral at Cowen.
• Eaton Vance (EV) to neutral from sell at Ticonderoga.
• Adtran (ADTN) to buy from underperform at BofA/Merrill.

MOST NOTEWORTHY: Seaspan, Vodafone, Telefonica and 8x8 Inc. were today's noteworthy initiations:

• Jefferies believes shares of Seaspan (NYSE: SSW) are attractively valued at current levels given the company's large modern fleet of containerships and "excellent" earnings and cash flow visibility; shares were initiated with a Buy rating and $33 target.
  
• Vodafone (NYSE: VOD) and Telefonica (NYSE: TEF) were assumed with Outperform ratings at Bernstein, as they believe their mobile growth will be stronger than expected.
  
• Kaufman Bros. believes 8x8 Inc. (NASDAQ: EGHT) is on the cusp of posting sustainable profitability and could be an attractive acquisition candidate. The firm started shares with a Buy rating and $2 target.

OTHER INITIATIONS:

• Goldman initiated Ford (NYSE: F) with a Neutral rating.
  
• Sensient Tech (NYSE: SXT) was started withan Outperform rating and $36 target at Oppenheimer.
  
• Friedman Billings assumed Prudential FInancial (NYSE: PRU) with a Market perform rating and $86 target.