NEW YORK ( TheStreet) -- CHANGE IN RATINGS, EPSAccenture ( ACN) rated new Buy at Deutsche. $71 price target. Company can continue to gain market share. Advanced Micro ( AMD) upgraded at Oppenheimer from Underperform to Perform. Valuation call, as the stock has already dropped 21% since its latest earnings warning. Bank of South Carolina ( BKSC) upgraded to buy at TheStreet Ratings. Becton Dickinson ( BDX) downgraded at Citi to Hold. Valuation call, based on a $79 price target. Chesapeake Energy ( CHK) upgraded at Wells to Outperform. Utica and liquids business should continue to drive growth. Constellation Brands ( STZ) estimates increased at UBS through 2013. Company is seeing higher sales and buying back more stock. Buy rating and $28 price target. Delta ( DAL) rated new Buy at Sterne Agee. $18 price target. Company has a strong financial base and should ultimately achieve investment grade status. Express Scripts ( ESRX) estimates reduced at Morgan Stanley. ESRX estimates were cut through 2013. Company lowered its guidance. Overweight rating and new $55 price target. GameStop ( GME) rated new Outperform at Baird. $29 price target. Company should see better demand heading into the holiday season. Harris ( HRS) downgraded at Benchmark from Buy to Hold. $38 price target. Company could be hurt by lower international demand and government budget delays. Hartford Financial ( HIG) estimates raised at Morgan Stanley through 2013. Company is positioned well, despite the volatile operating environment. Equal-weight rating. Illumina ( ILMN) downgraded at Citi to Hold. $44 price target. Company has limited earnings visibility. Illumina downgraded to hold by TheStreet Ratings. Illumina downgraded at Deutsche from Buy to Hold. $30 price target. Company is seeing lower spending across the globe. Illumina cut from Focus List at JP Morgan. Estimates also lowered, to match the company's guidance. $44 price target. Illumina downgraded at UBS from Buy to Neutral. $32 price target. Estimates also cut, to match the company's new guidance. Intercontinental Exchange ( ICE) downgraded at KBW from Outperform to Market Perform. Valuation call, based on a $140 price target. Invesco ( IVZ) upgraded at BofA/Merrill from Neutral to Buy. Valuation call, as the stock has declined 30% this year. $25 price target.