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Unusual Volume for NASDAQ Stocks

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Seeing today's unusual volume on a stock is like seeing people standing in line overnight to buy the latest and greatest gadget or must-have item. Unusual volume tells you something important is going on with a stock, and you should pay attention.

Up on Unusual Volume


Symbol Company Last Sale Price Change Net / % Share Volume Volume % Change

CBOE

 CBOE Holdings, Inc. CBOE Holdings, Inc. $ 28.07 1.60  6.04% 4,754,051 771%

BRKS

 Brooks Automation, Inc. Brooks Automation, Inc. $ 12.06 .77  6.82% 2,273,557 490%

MPWR

 Monolithic Power Systems, Inc. Monolithic Power Systems, Inc. $ 17 .73  4.49% 1,214,546 356%

PCYC

 Pharmacyclics, Inc. Pharmacyclics, Inc. $ 23.23 3.432  17.34% 3,935,311 317%

RPXC

 RPX Corporation RPX Corporation $ 19.13 1.88  10.90% 842,673 286%

IPGP

 IPG Photonics Corporation IPG Photonics Corporation $ 55.44 1.84  3.43% 2,336,271 245%

VOXX

 VOXX International Corporation VOXX International Corporation $ 13.89 .96  7.42% 620,891 224%

LQDT

 Liquidity Services, Inc. Liquidity Services, Inc. $ 40.20 1.20  3.08% 1,239,504 221%

BWLD

 Buffalo Wild Wings, Inc. Buffalo Wild Wings, Inc. $ 85.72 1.08  1.28% 1,687,369 147%

AKRX

 Akorn, Inc. Akorn, Inc. $ 12.48 .52  4.35% 2,673,145 113%

NTES

 Netease.com, Inc. Netease.com, Inc. $ 48.40 .51  1.06% 1,079,709 107%

SHPGY

 Shire plc $ 104.91 1.31  1.26% 797,870 88%

ALXN

 Alexion Pharmaceuticals, Inc. Alexion Pharmaceuticals, Inc. $ 83.445 3.035  3.77% 2,100,704 66%

VOCS

 Vocus, Inc. Vocus, Inc. $ 23.28 .98  4.39% 238,593 59%

WPRT

 Westport Innovations Inc Westport Innovations Inc $ 42.20 .65  1.56% 1,776,350 59%

CME

 CME Group Inc. CME Group Inc. $ 291.59 8.22  2.90% 1,114,275 55%

CSOD

 Cornerstone OnDemand, Inc. Cornerstone OnDemand, Inc. $ 18.09 .51  2.90% 403,659 47%

QLTY

 Quality Distribution, Inc. $ 12.50 .58  4.87% 155,945 38%

BIDU

 Baidu, Inc. Baidu, Inc. $ 136.59 1.145  .85% 7,129,366 21%

PCLN

 priceline.com Incorporated priceline.com Incorporated $ 545.04 4.91  .91% 1,014,580 18%

Select a security's symbol for a quote summary.

As of 2/10/2012 4:00:00 PM