NEW YORK ( TheStreet) -- CHANGE IN RATINGSBoeing ( BA) upgraded at Jesup & Lamont from Hold to Buy. $63 price target. Stock is trading at an attractive risk/reward ratio. Boeing ( BA) upgraded at Barclays to Overweight from Equal Weight. Price target jumped to $65 from $57. 2009 and 2010 EPS estimates lowered to $1.20 and $4.40, respectively. Beckman Coulter ( BEC) upgraded at JP Morgan. Rating raised to Overweight from Neutral. Maintains $75 price target and 2009 EPS estimates of $3.82. Boston Scientific ( BSX) downgraded at Baird from Outperform to Neutral. $10 price target. Company is reliant on slow-growth markets. Bucyrus ( BUCY) target, estimate raised at Barclays. BUCY price target surged to $73 from $64. 2010 EPS estimate increased to $3.55 from $2.90. Maintain Overweight rating. Bucyrus ( BUCY) rated new Outperform at Morgan Stanley. $71 price target. Terex purchase was a positive and should materially add to earnings. Chesapeake Energy ( CHK) downgraded at Goldman from Buy to Neutral. Valuation call, despite the company's attractive resource upside. Con-way ( CNW) upgraded at BofA/Merrill to Buy from Neutral. Price target set at $45. YRC's market share losses makes valuation increasingly attractive for CNW. Calpine ( CPN) upgraded at Jefferies from Underperform to Hold. $11.50 price target. Company has reduced exposure to gas and trades at an attractive valuation. Dynegy ( DYN) upgraded at Jefferies from Underperform to Hold. Valuation call, based on a $1.80 price target. Brinker ( EAT) downgraded at UBS from Buy to Neutral. $16 price target. Estimates also lowered, as sales trends appear to have deteriorated.