Editor's Note: Green and red arrows refer to intraday stock price movement.NEW YORK ( TheStreet) -- CHANGE IN RATINGS Ashland ( ASH) downgraded at JP Morgan from Overweight to Neutral. Valuation call, based on a $70 price target. Blackrock ( BLK) upgraded at Goldman to Buy. $240 price target. Asset flows should accelerate, which could help the company buy back more stock. Concur Technologies ( CNQR) upgraded at Needham from Hold to Buy. Stock is not yet fully pricing in the company's growth potential. Hittite Microwave ( HITT) rated new Hold at ThinkEquity. Valuation call, based on a $60 price target. HJ Heinz ( HNZ) downgraded at Goldman to Sell. Company's organic growth is lagging. $49 price target. Range Resources ( RRC) rated new Neutral at Goldman Sachs. Valuation call, based on a $63 price target. AT&T ( T) upgraded at Hudson Square to Buy from Hold. Stock is largely factoring in the loss of iPhone exclusivity. $36 price target. Tiffany ( TIF) downgraded at Deutsche from Buy to Hold, Deutsche Bank said. $65.50 price target. Valuation call, based on a $76 price target. T. Rowe Price ( TROW) downgraded at Goldman to Neutral. Valuation call, given the company's hefty equity exposure. Verizon ( VZ) downgraded at Hudson Square from Hold to Sell. Company is facing increased competition. $29 price target. Walgreen ( WAG) rated new Buy at UBS. $51 price target. Company is leveraged to generic growth and will likely continue to repurchase stock. End of report.