MOST NOTEWORTHY:

• Prudential upgraded shares of MGM Mirage (NYSE: MGM) to Overweight from Neutral on valuation, as the firm believes the recent weakness presents a buying opportunity.

• USA Truck Inc (NASDAQ: USAK) was raised to Equal Weight from Underweight at Stephens based on valuation.

• Jefferies upgraded shares of Knightsbridge Tankers Ltd (NASDAQ: VLCCF) to Hold from Underperform to reflect the company's five vessels now operating on long-term time charter contracts and its recent entry into the dry bulk shipping sector.

• Monolithic Power (NASDAQ: MPWR) was upgraded to Buy from Hold at Deutsche Bank following its patent win case against O2Micro International Ltd (OIIM).

• Wachovia upgraded Stanley Inc (NYSE: SXE) to Outperform from Market Perform based on its strong Q4 report and guidance...

• Cognos Inc (NASDAQ: COGN) was upgraded to Outperform from Sector Perform at Pacific Crest.

• Riverbed Technology, Inc (NASDAQ: RVBD) was raised to Overweight from Market Weight at Thomas Weisel.

• Stifel upgraded Priceline.com Inc (NASDAQ: PCLN) to Buy from Hold.

• Barrington raised X-Rite, Inc (NASDAQ: XRIT) To Outperform from Market Perform.

• Morgan Stanley raised Principal Financial Group Inc (NYSE: PFG) to Equal Weight from Underweight.

Analyst upgrades 5-17-07: COGN, PCLN and MGM originally appeared on BloggingStocks on Thu, 17 May 2007 10:36:00 EST. Please see our terms for use of feeds.

MOST NOTEWORTHY:

• Citing peak employee productivity and margin expansion difficulties, Citigroup downgraded Cisco Systems Inc (NASDAQ: CSCO) from its previous Buy rating and assumed the company with a Hold rating.

• Goldman Sachs downgraded Continental Airlines Inc (NYSE: CAL) to Sell from Neutral on valuation.

• JP Morgan assumed coverage of Caterpillar Inc (NYSE: CAT) with an Underweight rating, downgraded from its previous Neutral rating.

• Following CIBC's outlook for the Paper & Forest sector through 2008, the firm downgraded Bowater Inc (NYSE: BOW) to Sector Underperformer from Sector Performer. The broker believes pulp, paper and packaging prices are near cyclical highs.

• Goldman Sachs expects a slowdown in revenue growth and margins in 2007 for TRW Automotive Holdings Corp (NYSE: TRW) and added the company to its America's Conviction Sell List.

• USA Truck Inc (NASDAQ: USAK) was downgraded to Market Perform from Outperform at Morgan Keegan following the trucking company's disappointing Q4, guidance and lack of near-term catalysts.

Analyst downgrades 1-26-07: Continental Airlines left on the tarmac, downgraded to Sell originally appeared on BloggingStocks on Fri, 26 Jan 2007 11:10:00 EST. Please see our terms for use of feeds.