Analyst upgrades:

• Citigroup upgraded American Express (NYSE: AXP) to Buy from Hold and added the stock to its Top Picks Live list following the company's investor day. Citi believes American Express' credit trends are improving and raised its price target on shares to $36 from $28.
• Janney Montgomery upgraded Gardner Denver (NYSE: GDI) to Buy from Neutral after meeting with management to reflect expectations for EPS growth in 2010 and valuation. The firm has a $38 target on the stock.
• BofA/Merrill upgraded Freeport McMoRan (NYSE: FCX) to Buy from Underperform and raised its target to $87 from $49 based on strong copper fundamentals.
• Cbeyond (NASDAQ: CBEY) was upgraded to Overweight from Equal Weight at Stephens.
• Gibraltar Industries (NASDAQ: ROCK) was upgraded to Outperform from Neutral at Baird.
• Fortress (NYSE: FIG) was upgraded to Outperform from Market Perform at Keefe Bruyette.

Analyst upgrades:

• Citigroup upgraded WebMD (NASDAQ: WBMD) shares to Buy from Hold on valuation following the company's Q4 results and outlook. The firm maintains a $25 target on the stock.
  
• Goldman upgraded Verizon (NYSE: VZ) and AT&T (NYSE: T) to Buy from Neutral based on valuation and expectations for 2010 earnings growth.
• Roth upgraded Maxwell Tech (NASDAQ: MXWL) to Buy from Hold following the company's Q4 results to reflect strong ultracapacitor sales growth and gross margin improvement. The firm maintains a $12 target on the stock.
• Nara Bancorp (NASDAQ: NARA) was raised to Market Perform from Underperform at Friedman Billings.
• Cubic (NYSE: CUB) was upgraded to Neutral from Overweight at JP Morgan.
  
• Terex (NYSE: TEX) was lifted to Outperform from Market Perform at Wachovia.

MOST NOTEWORTHY: UCBH Holdings, National Atlantic Holdings and J Sainsbury were today's noteworthy downgrades:

• Friedman Billings downgraded UCBH Holdings (NASDAQ: UCBH) to Market Perform from Outperform. The firm said the departure of auditor PWC could not have come at a worse time following the recent CFO replacement and the credit-quality-related adverse change to Q4 earnings in the 10-K.
  
• Citigroup cut National Atlantic Holdings (NASDAQ: NAHC) to Hold from Buy after the company announced plans to merger with a subsidiary of Palisades Safety and Insurance.
  
• Goldman removed J Sainsbury (OTC: JSAIY) from the Conviction Buy List on fears that stagflation could impact earnings.

OTHER DOWNGRADES:

• Suntrust cut Goodrich Petroleum (NYSE: GDP) to Neutral from Buy.
  
• Cubist Pharma (NASDAQ: CBST) was downgraded to Market Weight from Overweight at Thomas Weisel.
  
• ING lowered Banco Bilbao Vizcaya Argentaria (NYSE: BBV) to Hold from Buy.

MOST NOTEWORTHY: Kenneth Cole, Tempur Pedic, Biogen Idec, Cubist Pharma and ShoreTel were today's noteworthy initiations:

• B. Riley started shares of Kenneth Cole (NYSE: KCP) with a Neutral rating and $21 target, citing a lack of near-term catalysts and the challenging environment for footwear companies.
  
• William Blair resumed coverage of Tempur Pedic International (NYSE: TPX) with an Outperform rating, and finds the current valuation attractive for long-term investors.
  
• Banc of America assumed coverage of Biogen Idec (NASDAQ: BIIB) with a Neutral rating and $79 target, as they see less than 50% probability of a sale at current prices and expect shares to trade back to pre-announcement levels in the mid-to-high $60s if no sale is made.
  
• Cubist Pharmaceuticals (NASDAQ: CBST) was initiated with a Sector Performer rating at CIBC, citing competitive headwinds.
  
• ShoreTel (NASDAQ: SHOR) was initiated with a Neutral rating at Nollenberger on valuation.

OTHER INITIATIONS:

• UBS initiated CVS Caremark (NYSE: CVS) with a Buy rating and Rite Aid (RAD) and Walgreen (WAG) with Neutral ratings.
  
• Caris initiated Starent Networks (NASDAQ: STAR) with an Average rating and $23 target.

MOST NOTEWORTHY: St. Jude Medical (STJ), Juniper Networks (JNPR), Satyam Computer (SAY), Clearwire (CLWR) and Citrix Systems (CTXS) were today's noteworthy upgrades:

• St. Jude Medical's (NYSE: STJ) upgrade to Outperform from Market Perform at Wachovia was based on signs of an ICD recovery and reasonable valuation.

• Baird upgraded shares of Juniper (NASDAQ: JNPR) to Outperform from Neutral following better-than-expected guidance; Goldman upgraded Juniper to Buy from Neutral.

• Satyam (NYSE: SAY) was upgraded to Positive from Neutral at Susquehanna citing better than expected growth.

• Clearwire (NASDAQ: CLWR) was upgraded to Outperform from Peer Perform at Bear Stearns following the announcement that Sprint (S) and Clearwire will form a Nationwide 4G/Wimax Network.

• Citrix (NASDAQ: CTXS) was upgraded at Jefferies to Buy from Hold as they believe the strong customer response to Presentation Server Platinum Edition and the pipeline buildup related to NetScaler 8.0 bode well for the second half of 2007...

OTHER UPGRADES:

• Lehman raised DSW Inc (NYSE: DSW) to Overweight from Equal-Weight.

• Goldman upgraded shares of Labor Ready (NYSE: LRW) to Neutral from Sell.

• Rodman upgraded shares of Encysive Pharma (NASDAQ: ENCY) to Market Perform from Underperform.

• Lazard upgraded Cubist Pharmaceuticals (NASDAQ: CBST) to Neutral from Sell.

• Selective Insurance (NASDAQ: SIGI) was upgraded at Fox Pitt to In Line from Underperform.

• Raymond James upgraded Pfizer (NYSE: PFE) to Strong Buy from Market Perform.

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