Top Pre-Market Stock Upgrades/Downgrades May 11, 2010

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

Upgrades:

• ABIOMED (ABMD) upgraded to Outperform from Neutral at Wedbush; price target $14 from $13
• Energy Conversion Devices (ENER) upgraded to Neutral from Underperform at Macquarie
• Ener1 (HEV) upgraded to Neutral from Sell at Janney Montgomery Scott
• MetroPCS Communications (PCS) upgraded to Buy from Hold at Deutsche Bank
• Red Hat (RHT) upgraded to Buy from Hold at Jefferies; price target $35 from $27

Downgrades:

• China Natural Gas (CHNG) downgraded to Hold from Buy at Roth Capital; price target $8.50 from $14
• Tyson Foods (TSN) downgraded to Neutral from Outperform at Credit Suisse

Coverage Initiated:

• General Electric (GE) initiated with an Outperform at Credit Suisse; price target $23
• PetSmart (PETM) initiated with a Buy at Jefferies; price target $39
• SS&C Technologies (SSNC) initiated with a Buy at Deutsche Bank; price target $19
• STAAR Surgical (STAA) initiated with a Buy at Benchmark; price target $7
• Vale (VALE) initiated with a Hold at Stifel Nicolaus

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