CHANGE IN RATINGS

Athenahealth ( ATHN) coverage initiated at Goldman Sachs with a Neutral rating, due to valuation. See differentiated business model and competitive advantages, however shares trade at a significant premium to all relevant groups on various metrics. Price target at $41.

Athenahealth initiated at Jefferies with Buy rating. Price target starts at $46 with 2008 eps estimates set at $0.49.

Acuity Brands ( AYI) upgraded at Baird from Neutral to Outperform. $56 price target. Despite slowing US outlook, management has a solid track record of maintaining growth and profitability.

FormFactor ( FORM) upgraded at Citigroup from Hold to Buy. $44 price target. Downside appears limited, as the stock has pulled back to an attractive level ahead of what should be a strong 2008.

General Motors ( GM) upgraded at UBS to Buy rating from Sell. Price target jumps to $48 from $24 while FY2008 eps estimates hold at $2.25.

Nexen ( NXY) upgraded at FBR to an Outperform rating due to stock underperformance relative to rise in crude oil.

Office Depot ( ODP) downgraded at Deutsche Bank a Hold rating due to restatement announcement.

Pacific Capital Bancorp ( PCBC) downgraded at KBW from Outperform to Market Perform. Bank warned for the second time this year, and investors are unlikely to be rewarded in the near term.

Petro Canada ( PCZ) upgraded at FBR to an Outperform rating due to weak stock price performance relative to rise in crude oil.

Sara Lee ( SLE) coverage initiated at Goldman Sachs with a Neutral rating. After two years of divestitures, company has lowered cost base and restructured distribution. However, near-term performance could be weak due to cost environment and business trends that remain a "work in progress". Price target at $16.

Tupperware ( TUP) initiated at Jefferies with Buy rating. Price target starts at $46 with 2008 eps estimates set at $2.35.

US BioEnergy ( USBE) upgraded at UBS to Buy rating from Neutral. However, price target dips to $10.50 from $12 and FY2008 eps estimates lowered to $0.85 from $1.00.

STOCK COMMENTS / EPS CHANGES

Applebee's ( APPB) 2007 estimates reduced at FBR by a penny to $1.25 a share following weaker-than-expected Q3 EPS number. Maintained Market Perform rating.

Atheros ( ATHR) target raised at Deutsche Bank by $2 to $35 following solid Q3 results and Q4 guidance. Maintained Buy rating.

Canadian Pacific Railway ( CP) target cut at Credit Suisse to $82.50 from $86. Believes while volumes, CAD and fuel remain as headwinds, its long-term secular thesis is intact. Maintained Outperform rating.

Humana ( HUM) target price raised at Deutsche Bank from $78 to $81 following strong Q3 results and impressive 2008 guidance.

Humana price target raised at Goldman to $86 from $80, following solid Q3 results and strong 2008 outlook. See compelling entry point given strong growth potential for Humana's Medicare Advantage. Maintained Buy rating.

Louisiana-Pacific ( LPX) target cut at Deutsche Bank from $20 to $16 due to sharp rise in Canadian dollar and weak housing market. Maintained Hold rating.

Annaly Capital Management ( NLY) 2007 estimates raised at FBR to $1.28 a share following better-than-expected Q3 results. Maintained Outperform rating.