Upgrades and Downgrades for Thursday, 5/10

 Upgrades

• Big Lots (BIG) upgraded by Barclays from Equal Weight to Overweight
• First Niagara (FNG) upgraded by Janney Capital from Neutral to Buy
• Tempur-Pedic (TPX) upgraded by Raymond James from Market Perform to Strong Buy
• East West Bancorp (EWBC) upgraded by RBC Capital from Sector Perform to Outperform
• Prudential (PRU) upgraded by Morgan Stanley from Equal Weight to Overweight
• Prudential (PRU) upgraded by Evercore from Equal Weight to Overweight
• Marriott Vacations (VAC) upgraded by Goldman from Neutral to Buy
• ARM Holdings (ARMH) upgraded by Bernstein from Underperform to Market Perform
• Tanger Factory (SKT) upgraded by UBS from Neutral to Buy
• Oceaneering (OII) upgraded by Societe Generale from Hold to Buy
• Solera (SLH) upgraded by Goldman from Sell to Neutral
• NuStar Energy (NS) upgraded by Credit Suisse from Neutral to Outperform
• TransDigm (TDG) downgraded by BB&T from Buy to Hold

Downgrades 

• 3M Company (MMM) downgraded by Bernstein from Outperform to Market Perform
• Vail Resorts (MTN) downgraded by Wells Fargo from Outperform to Market Perform
• AboveNet (ABVT) downgraded by Wells Fargo from Outperform to Market Perform
• Arthur J. Gallagher (AJG) downgraded by Macquarie from Outperform to Neutral
• Aon Corp. (AON) downgraded by Macquarie from Outperform to Neutral
• Human Genome (HGSI) downgraded by Leerink from Outperform to Market Perform
• Martin Marietta (MLM) downgraded by RBC Capital from Outperform to Sector Perform
• Vertex Pharmaceuticals (VRTX) downgraded by RBC Capital from Top Pick to Outperform
• Dolby (DLB) downgraded by JPMorgan from Overweight to Neutral
• Teva (TEVA) downgraded by Needham from Strong Buy to Hold
• Silicon Graphics (SGI) downgraded by Sterne Agee from Buy to Neutral
• Western Gas Partners (WES) downgraded by Credit Suisse from Outperform to Neutral

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Upgrades & Downgrades provided by Theflyonthewall.com