NEW YORK ( TheStreet) -- CHANGE IN RATINGSAnadarko Petroleum ( APC) rated new Buy at Pritchard Capital. $72 price target. Company has a strong portfolio of domestic onshore assets. CR Bard ( BCR) upgraded at Morgan Joseph from Hold to Buy. $97 price target. Company's buyback program should add to earnings. Berkshire Hathaway ( BRK.B) downgraded at Stifel from Hold to Sell. Earnings could be hurt by macroeconomic issues. Calpine ( CPN) rated new Buy at Deutsche Bank. $16 price target. Company is the strongest operator in its group and is positioned well for a recovery in demand. H&R Block ( HRB) downgraded at Barrington from Outperform to Market Perform. Company has lost several major executives in recent months. Hospira ( HSP) initiated at Citi with a Hold rating and $62 price target. Momentum building. Onyx Pharmaceuticals ( ONXX) upgraded at BMO to Outperform. $32 price target. Stock is cheap, despite low expectations for carfilzomib. Protective Life ( PL) downgraded at BofA/Merrill to Underperform from Neutral on concerns about EPS volatility in 2Q. Variable annuities largely unhedged. Maintain $25 price target. PPL ( PPL) upgraded at UBS from Neutral to Buy. $29 price target. Company has settled its rate case and merger in Kentucky. Stock is also pricing in the recent equity issuance. State Street ( STT) rated new Hold at Stifel Nicolaus. Company will be hurt by lower interest rates, but sales and earnings should gradually recover.
Google ( GOOG) estimates, target lowered at Oppenheimer. Shares of GOOG now seen reaching $600. Estimates also cut, given slower international growth and currency issues. Outperform rating. Lazard ( LAZ) target reduced at Morgan Stanley. Shares of LAZ now seen reaching $37. There is reduced visibility for the deal pipeline. Equal-weight rating. MercadoLibre ( MELI) target upped at Susquehanna. Shares of MELI now seen reaching $65. Positive discussion with management confirms the company's strong outlook. Positive rating. Nvidia ( NVDA) estimates, target cut at Susquehanna. Shares of NVDA now seen reaching $9. Estimates also lowered, as challenges are mounting in the PC market. Precision Castparts ( PCP) added to Conviction Buy List at Goldman. Company mostly supplies original equipment and is a major player in Boeing's 787. Rackspace ( RAX) estimates reduced at ThinkEquity through 2011. Company will be hurt by the decline in the British Pound. Hold rating. Rockwood Holdings ( ROC) price target cut at Barclays to $23 from $25 on revised demand. Maintain Equal Weight rating. Charles Schwab ( SCHW) numbers cut at Morgan Stanley through 2011. Company will be hurt by interest rates and the recent stock market decline. Overweight rating and new $18 price target. Sherwin-Williams ( SHW) estimates increased at Keybanc through 2011. Demand environment is beginning to firm. Hold rating. Tractor Supply ( TSCO) numbers raised at Goldman to $68. Estimates also increased, given the company's new guidance. Neutral rating. Textron ( TXT) cut from Conviction Buy List at Goldman. Estimates also cut, given lower Cessna expectations. New $23 price target.