Stock Upgrades: Allscripts Healthcare Solutions (NASDAQ:MDRX), Bonanza Creek Energy Inc (NYSE:BCEI), Polypore International (NYSE:PPO), Covanta Holding (NYSE:CVA)

Allscripts Healthcare Solutions (NASDAQ:MDRX) was upgraded by analysts at ISI Group from a neutral rating to a buy rating. Allscripts Healthcare Solutions Inc (NASDAQ:MDRX) stock performance was -0.07% in last session and finished the day at $14.98. Traded volume was 3.16million shares in the last session and the average volume of the stock remained 1.79million shares. The beta of the stock remained 1.17. Allscripts Healthcare Solutions Inc (NASDAQ:MDRX) insider ownership is 0.90%.

Bonanza Creek Energy (NASDAQ:BCEI) was upgraded by stock analysts at Brean Capital from a “hold” rating to a “buy” rating in a report issued on Friday. A number of other analysts have also recently weighed in on BCEI. Analysts at SunTrust raised their price target on shares of Bonanza Creek Energy from $62.00 to $63.00 in a research note. Bonanza Creek Energy Inc (NYSE:BCEI) dropped -8.19 percent to $42.26 Friday on volume of 2.89million shares. The intra-day range of the stock was $41.56 to $44.54. Bonanza Creek Energy Inc (NYSE:BCEI) has a market capitalization of $1.71billion.

Polypore International (NYSE:PPO) was upgraded by equities researchers at Ascendiant Capital Markets from a “hold” rating to a “buy” rating in a research report issued on Friday. Polypore International, Inc. (NYSE:PPO)’s stock on Apr 09, 2014 reported a increase of 14.98% to the closing price of $39.92. Its fifty two weeks range is $29.39-$48.41. The total market capitalization recorded $1.80billion. The overall volume in the last trading session was 2.55million shares. In its share capital, PPO has 45.08million outstanding shares.

Covanta Holding Corp (NYSE:CVA) was upgraded by Zacks from a “neutral” rating to an “outperform” rating in a research note. The firm currently has a $19.90 price target on the stock. Zacks‘s price target would suggest a potential upside of 5.57% from the company’s current price. On Friday, shares of Covanta Holding Corp (NYSE:CVA) advanced 0.74% to close the day at $18.99. Company return on investment (ROI) is 5.60% and its monthly performance is recorded as 6.63%. Covanta Holding Corp (NYSE:CVA) quarterly revenue growth is 3.71%.