NEW YORK ( TheStreet) -- CHANGE IN RATINGSAthenaHealth ( ATHN) downgraded at Oppenheimer from Perform to Underperform. Company risks a slowdown in its core business. Brown-Forman ( BF.B) upgraded at UBS from Sell to Neutral. $58 price target. Fundamentals are likely to improve and the stock no longer trades at a sizable premium. Burger King ( BKC) upgraded at Deutsche from Hold to Buy. $24 price target. Stock has underperformed the market and fundamentals may be near an inflection point. Broadcom ( BRCM) upgraded at Goldman from Neutral to Buy. Estimates also raised, as the company is gaining market share and can benefit from secular growth trends. $40 price target. Avis Budget ( CAR) upgraded at Barclays to Overweight from Equal Weight on strong 2011 earnings potential. Price target jumped to $15 from $12. 2010 EPS estimate lowered to 62 cents, 2011 introduced at a dollar. Eurand ( EURX) downgraded at BofA/Merrill to Underperform from Neutral as upside is limited. Maintain $11 price target. Glacier Bancorp ( GBCI) upgraded at Suntrust from Neutral to Buy. Shares are attractive, based on normalized earnings. $20 price target. Impax Labs ( IPXL) downgraded at BofA/Merrill to Underperform from Neutral as positive outlook is already priced into shares. Maintain $17 price target. Joy Global ( JOYG) rated new Equal-weight at Morgan Stanley. $60 price target. LSI ( LSI) downgraded at Goldman from Buy to Neutral. Market is now pricing in a cyclical recovery in IT spending. $6.50 price target. LSI ( LSI) upgraded at Kaufman from Hold to Buy. $8 price target. Company is seeing positive momentum in design wins. Nike ( NKE) upgraded at FBR from Market Perform to Outperform. $84 price target. Company sees visibility for top-line growth. Polycom ( PLCM) downgraded at BofA/Merrill to Neutral from Buy on unattractive valuation. Price target raised to $35 from $32.