MOST NOTEWORTHY: Swift Transportation (SWFT), JetBlue (JBLU) and Southwest (LUV) top today's list of upgrades.

• Following Director Moyer's offer to buy Swift Transportation, Inc. (NASDAQ:SWFT) for $29 a share, the company was upgraded to Market Perform from Underperform at Wachovia, to Peer Perform from Underperform at Bear Stearns and to Neutral from Sell at Bank of America.
• JetBlue Airways Corp. (NASDAQ:JBLU) was upgraded by Raymond James to Outperform from Market Perform following the October traffic report.
• Southwest Airlines Co. (NYSE:LUV) was upgraded to Outperform from Underperform at Credit Suisse based on valuation.

OTHER UPGRADES:

• Medimmune, Inc. (NASDAQ:MEDI) was upgraded to Outperform from Market Perform at Friedman, Billings Ramsey, citing Numax data and increased sales expectations for the drug.
• Finally, H&R Block, Inc. (NYSE:HRB) was upgraded to Buy from Sell at Soleil. The firm believes H&R Block's decision to explore strategic alternatives could lead to a possible sale of the whole company or certain parts of the company.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).