Almost half of venture-backed IPOs this year are losers By: MarketWatch October 03, 2014 at 06:00 AM EDT Shares of the two worst performers are down 63%, writes Phil van Doorn. Read More >> Related Stocks: A10 Networks Inc Achaogen Inc Affimed Ord Shs Alibaba Group Holding Ltd Aquinox Pharmaceutic Care.com Inc Caredx Inc Cyberark Soft Ord Egalet Corp Facebook Gopro Inc Cl A Immune Design CS Intersect Ent Inc Loxo Oncology CS Marinus Pharma CS Ocular Therapeut Otonomy Inc Pfenex Inc Radius Recycling Inc Recro Pharma Inc Sage Therapeutic Com Semler Scientific T2 Biosystems CS Tuniu Corporatio ADR Ultragenyx Pharmaceu Zendesk Inc