NEW YORK ( TheStreet) -- CHANGE IN RATINGSAmerican Eagle ( AEO) upgraded at Janney from Neutral to Buy. Checks suggest that the company had strong holiday sales. Margins should also improve. Acme Packet ( APKT) downgraded at Wedbush from Outperform to Neutral, Wedbush said. $26 price target. Weak SP business will continue to weigh on results. Acme Packet downgraded at Deutsche from Buy to Hold, Deutsche Bank said. $30 price target. Company is seeing weaker demand across the board. Best Buy ( BBY) downgraded to hold at TheStreet Ratings. Church & Dwight ( CHD) downgraded at BMO from Outperform to Market Perform. $48 price target. Valuation call, as the stock was up 33% last year. Clearwire ( CLWR) downgraded at Kaufman from Buy to Hold, Kaufman Bros. said. $2 price target. Revenue could be flattish this year and the company may need additional funding. Chipotle ( CMG) added to Conviction Buy List at Goldman Sachs. Higher sales can drive margin expansion. Compass Minerals ( CMP) downgraded at Ticonderoga from Buy to Neutral, Ticonderoga said. Estimates also cut, given lower snowfall levels. Dunkin Brands ( DNKN) upgraded at Goldman from Sell to Neutral, Goldman Sachs said. Valuation call. Energizer ( ENR) downgraded at BMO from Outperform to Market Perform, BMO Capital said. $83 price target. Valuation call, as the stock is up 23% over the past three months. Ford ( F) rated new Neutral at Guggenheim. Demand could remain slow across the board in 2012. Fusion-io ( FIO) rated new Hold at Benchmark. Valuation call. General Motors ( GM) rated new Neutral at Guggenheim. Demand will likely remain slow in Europe. GNC ( GNC) rated new Buy at Deutsche. $36 price target. Checks suggest that industry growth trends remain intact. Groupon ( GRPN) rated new Neutral at Collins Stewart. $19 price target. Growth appears to be slowing. Harsco Corporation ( HSC) downgraded at KeyBanc from Buy to Hold. Persisting demand challenges in two largest business segments. Heartland Express ( HTLD) downgraded at Morgan Keegan from Outperform to Market Perform, Morgan Keegan said. Valuation call, based on a $15 price target. Johnson Controls ( JCI) rated new Buy at Guggenheim. Profitability should continue to improve in North America. NetApp ( NTAP) downgraded at Credit Suisse from Outperform to Neutral, Credit Suisse said. $42 price target. Survey suggests that growth could slow in the company's core business.