Google: Analysts' Upgrades, Downgrades

NEW YORK (TheStreet) -- CHANGE IN RATINGS Anadarko 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 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. To read the rest, head over to TheStreet.com