Red Robin Gourmet Burgers Inc. (NASDAQ:RRGB) is down 11.50% today at $31.61. RRGB has traded 832 thousand shares so far today, 4 times its daily average volume. Red Robin reported a 21% increase in first quarter earnings, but guest count falls. The company has a market cap of 463.34 million.
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21Vianet Group, Inc. (NASDAQ:VNET) is down 13.79% this morning at $10.98. VNET has traded 993 thousand shares so far today, 3 times its average volume. VNET shares are tumbling despite posting a beat for the first quarter. EPS beat by $0.01 and revenue was in line with estimates. The company has a market cap of 615.87 million.
Mitek Systems Inc. (NASDAQ:MITK) is down 9.71% today at $2.15. MITK has traded 542 thousand shares so far today and trades 1.2 million shares a day on average. MITK shares are down about $0.80 a share this week. The company has a market cap of 55.36 million.
Sino Clean Energy Inc. (NASDAQ:SCEI) is down 8.96% this morning at $1.22. SCEI has traded 262 thousand shares so far today and trades 876 thousand shares a day on average. SCEI shares have dropped $0.50 a share so far today. The company has a market cap of 29.12 million.
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Dendreon Corp. (NASDAQ:DNDN) is down 10.96% this morning at $7.67. DNDN has traded 6.8 million shares this morning and trades 7.5 million shares a day on average. DNDN shares are down today on news that the SEC has launched a formal investigation into the company. The company has a market cap of 1.13 billion.
Savient Pharmaceuticals, Inc. (NASDAQ:SVNT) is down 12.17% today at $1.01. SVNT has traded 791 thousand shares so far today and trades 1.1 million shares a day on average. SVNT shares are down $0.60 a share over the past five days. The company has a market ap of 71.32 million.
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