Tuesday's Analysts' Upgrades and Downgrades

CHANGE IN RATINGS

Agilent (A Quote) upgraded at JP Morgan from Neutral to Overweight. Stock also added to the Focus List, using a $46 price target. Company also remains a potential takeover target.

Broadcom (BRCM Quote) upgraded at Citigroup from Hold to Buy. $52 price target. Networking and broadband should drive a return of revenue and margin growth over the next couple of years.

Eaton (ETN Quote) upgraded at Friedman, Billings Ramsey to Outperform. $104 price target. Estimates cut to reflect lower near-term earnings, but growth remains solid in several areas. Stock also trades at a discount to its peers.

General Motors (GM Quote) downgraded at Bear Stearns from Peer Perform to Underperform. Estimates look high, following the UAW settlement. Company also highly levered to a slowing US economy.

Manor Care (HCR Quote) downgraded at Friedman, Billings Ramsey to Market Perform. Stock is trading near the $67 price target, reflecting the bid from Carlyle Group.

Knight Transportation (KNX Quote) downgraded at BB&T from Buy to Hold. Weak freight volumes are not likely to improve in a lackluster economic environment.

Navigators Group (NAVG Quote) downgraded at FBR from Outperform to Market Perform. Valuation call, as the stock is up 21% since the beginning of the year. Fundamentals remain strong. $62 price target.

RSC Holdings (RRR Quote) initiated by UBS. Initiated with a Neutral rating. Introduces $18 price target. Introduces 2007 EPS estimates of $1.38 and 2008 EPS estimates of $1.60.