On Apr 3, Zacks Investment Research upgraded ZIOPHARM Oncology Inc. (NASDAQ:ZIOP) to Zacks Rank #1 (Strong Buy). ZIOPHARM Oncology Inc. (NASDAQ:ZIOP)’s loss estimates have declining on the back of better-than-expected fourth quarter 2013 results. ZIOPHARM Oncology Inc. (NASDAQ:ZIOP) stock performance was -6.06% in last session and finished the day at $4.34. Traded volume was 1.86million shares in the last session and the average volume of … Continue reading Biotech losers: ZIOPHARM Oncology (NASDAQ:ZIOP), Sangamo Biosciences (NASDAQ:SGMO), Lexicon Pharmaceuticals (NASDAQ:LXRX), XOMA Corp (NASDAQ:XOMA)