Top Pre-Market Stock Upgrades/Downgrades May 13, 2010

Here is a list of this morning’s top companies upgrades, downgrades, and initiations by brokerage firms.

Upgrades:

• AuthenTec (AUTH) upgraded to Buy at Craig Hallum; price target $6
• Citrix Systems (CTXS) upgraded to Outperform at Calyon
• Dynavax Technologies (DVAX) upgraded to Outperform at Wedbush; price target $6 from $2.60
• eBay (EBAY) upgraded to Overweight at Morgan Stanley
• Halliburton (HAL) upgraded to Outperform at FBR Capital Markets; price target $44 from $35
• Morgan Stanley (MS) upgraded to Outperform at FBR Capital Markets
• Myriad Genetics (MYGN) upgraded to Buy at Auriga; price target $23 from $19
• Supertex (SUPX) upgraded to Buy at Merriman

Downgrades:

• ArcelorMittal (MT) downgraded to Neutral at UBS
• Capital One Financial (COF) downgraded to Neutral at Macquarie
• Shire (SHPGY) downgraded to Neutral at JP Morgan
• Toll Brothers (TOL) downgraded to Neutral at Macquarie

Coverage Initiated:

• Nokia (NOK) initiated with a Hold at Needham

• Become A Funded Futures Trader