NEW YORK ( TheStreet) -- CHANGE IN RATINGSAmericredit ( ACF) downgraded at KBW from Market Perform to Underperform. Valuation call, based on a $21 price target. Alliance Data ( ADS) downgraded at Goldman from Buy to Neutral. Valuation call, based on a $70 price target. AGCO ( AGCO) upgraded at JPMorgan. Rating raised to Neutral from Underweight. Price target raised to $39 from $30. 2010 EPS estimates lowered to $1.45 from $1.20. Senator Levin Poses Three Cyber Scenarios (Forbes) Cardinal Health ( CAH) downgraded at Goldman to Neutral. Investor expectations have caught up to the company's margin potential. Cameron International ( CAM) upgraded at BMO to Outperform. Estimates also raised, as the company has leverage to rising international activity. Diebold ( DBD) downgraded at Keybanc from Buy to Hold. Valuation call, as the company's estimates may not have much near-term upside potential. Dell ( DELL) upgraded at Baird from Neutral to Outperform. $21 price target. Corporate PC and server spending should ramp throughout the year. Exelon ( EXC) downgraded at Wells from Market Perform to Underperform. Estimates also cut, as the company is facing lower forward power prices. Henry Schein ( HSIC) rated new Positive at Susquehanna Financial. $70 price target. Company should see renewed growth, as the economy rebounds. Jack In The Box ( JACK) downgraded at BofA/Merrill to Underperform from Buy. Valuation and potential earnings issues. Maintain $24 price target. 2010 and 2011 EPS estimates set at $1.95 and $2.17, respectively. Jack in the Box ( JACK) downgraded at Oppenheimer from Outperform to Perform. Valuation call, as beef prices could become a headwind in the second half of the year. Mastercard ( MA) rated new Outperform at FBR Capital Markets. $300 price target. Company should benefit from an economic recovery and a continued shift toward electronic payments. Masco ( MAS) rated new Buy at Goldman Sachs. $20 price target. Company is seeing better consumer demand and could raise its dividend. MB Financial ( MBFI) downgraded at Baird from Outperform to Neutral. $25 price target. Valuation call, as the stock is now trading at 2 times book value. Mohawk Industries ( MHK) rated new Sell at Goldman Sachs. Flooring prices will not go up as quickly as in other areas.