Allergan Inc. (NYSE:AGN) Trend Analysis and Actavis plc (NYSE:ACT) declared that they have signed into a definitive contract under which Actavis will purchase Allergan for a combination of $129.22 in cash and 0.3683 Actavis shares for each share of Allergan common stock. Shares of Allergan Inc. (NYSE:AGN) traded at $209.20 by surging 5.31% with price volatility of 2.31% for a week and 2.29% for a month. Its beta stands at 0.74 times.Hemispherx Biopharma, Inc. (NYSEMKT:HEB) Trend Analysis released that it had got a new research report from Professor Tramontano in the Department of Life and Environmental Sciences. The biochemical study demonstrates Ampligen can productively bind to the lethal EVD viral protein designated VP35. Hemispherx Biopharma, Inc. (NYSEMKT:HEB) stock hit highest price at $0.285, beginning with a price of $0.285 and reported a gain of 3.52% to the closed at $0.28 with a day range of $0.2523-$0.285. The total market capitalization remained 55.9 Million, total volume of 1.31 Million shares held in the session was surprisingly higher than its average volume of 1922.06 shares.Penn West Petroleum Ltd. (NYSE:PWE) Trend Analysis released that the details of its 2015 capital budget as well as updated long-term plan. The updated Long-Term Plan targets CAGR between 2015 as well as 2019 of 13% for oil in terms of average daily production volumes, and over 8% in terms of our total boe average daily production volumes, which is anticipated to drive a funds flow CAGR between 2015 and 2019 of over 20%. Penn West Petroleum Ltd. (NYSE:PWE) stock has highest price of $4.28 in last session, beginning with a price of $4.10 and reported a decrease of -1.18% to the closed at $4.17 with a day range of $4.07-$4.28. The stock is going forward its 52-week low with 4.25% and moving down from its 52 week high price with -57.73%.