Benzinga's Volume Movers

ZS Pharma Inc ZSPH shares climbed 40.86 percent to $89.18. The volume of ZS Pharma shares traded was 3609 percent higher than normal. ZS Pharma agreed to be acquired by AstraZeneca plc (ADR) AZN for $2.7 billion. Youku Tudou Inc (ADR) YOKU shares rose 7.88 percent to $26.29. The volume of Youku Tudou shares traded was 1119 percent higher than normal. Youku Tudou agreed to be acquired by Alibaba Group Holding Ltd BABA for $27.60 per ADS share in cash. ChannelAdvisor Corp ECOM surged 26.40 percent to $11.49. The volume of ChannelAdvisor shares traded was 849 percent higher than normal. ChannelAdvisor reported Q3 adjusted loss of $0.07 per share on revenue of $24.4 million. Stamps.com Inc. STMP shares moved up 30.44 percent to $99.11. The volume of Stamps.com traded was 699 percent higher than normal. Stamps.com reported stronger-than-expected Q3 results.