MOST NOTEWORTHY:

• Citigroup upgraded Whirlpool Corp (NYSE: WHR) to Hold from Sell with a $107 target after better-than-expected Q1 results.

• Amazon.com Inc (NASDAQ: AMZN) was upgraded to Market Perform from Underperform at Piper Jaffray, to Hold from Sell at Citigroup, to Neutral from Underperform at Cowen, to Sector Perform from Underperform at Pacific Crest and to Buy from Hold at BWS Financial.

• Elsewhere, Stephens raised Arkansas Best Corp (NASDAQ: ABFS) to Equal Weight from Underweight with a $30 target.

• Bernstein upgraded Capital One Financial (NYSE: COF) to Outperform from Market Perform...

• Key Bank Capital Markets upgraded Cheesecake Factory Inc (NASDAQ: CAKE) to Buy from Hold.

• Alcatel-Lucent (NYSE: ALU) was upgraded to Buy from Neutral at Goldman.

• Stifel upgraded Advance Auto Parts, Inc (NYSE: AAP) to Buy from Hold with a $48 target.

• UBS raised Yamana Gold Inc's (NYSE: AUY) rating to Neutral from Reduce.

• Longbow Research upgraded Parker Hannifin (NYSE: PH) to Buy from Neutral.

• Lehman upgraded American Standard Cos (NYSE: ASD) to Buy from Hold with a $50 target.

Analyst upgrade 4-15-07: ABFS, ALU, AMZN and CAKE upgraded today originally appeared on BloggingStocks on Wed, 25 Apr 2007 11:33:00 EST. Please see our terms for use of feeds.