Unusual Volume for NASDAQ Stocks

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.
Symbol Company Last Sale Price Change Net / % Share Volume Volume % Change
La Jolla Pharmaceutical Company La Jolla Pharmaceutical Company $ 10.65 1.70  ▲ 18.99% 1,045,559 944%
Westmoreland Coal Company $ 39.31 2.31  ▲ 6.24% 1,007,833 609%
PriceSmart, Inc. PriceSmart, Inc. $ 86.84 .63  ▲ .73% 991,455 607%
Shire plc $ 249.06 10.45  ▲ 4.38% 5,028,062 515%
Potbelly Corporation Potbelly Corporation $ 11.92 .95  ▲ 8.66% 3,360,479 422%
Macquarie Infrastructure Company LLC $ 68.92 2.19  ▲ 3.28% 1,552,930 395%
URS Corporation $ 52.02 1.09  ▲ 2.14% 3,615,040 329%
Lorillard, Inc $ 66.01 2.92  ▲ 4.63% 13,028,421 319%
TRW Automotive Holdings Corporation $ 101.47 5.84  ▲ 6.11% 3,801,433 282%
Nordion Inc. $ 12.95 .50  ▲ 4.02% 4,372,210 275%
Memorial Production Partners LP Memorial Production Partners LP $ 22.83 .63  ▲ 2.84% 1,376,050 243%
Tenaris S.A. $ 47.75 1.20  ▲ 2.58% 3,332,696 231%
United States Steel Corporation $ 27.64 .86  ▲ 3.21% 15,800,914 179%
The Providence Service Corporation The Providence Service Corporation $ 37.64 1.10  ▲ 3.01% 215,048 138%
Nippon Telegraph and Telephone Corporation $ 32.29 .63  ▲ 1.99% 679,298 135%
Westport Innovations Inc Westport Innovations Inc $ 18.26 .52  ▲ 2.93% 2,229,907 132%
Amazon.com, Inc. Amazon.com, Inc. $ 346.20 18.28  ▲ 5.57% 8,300,948 131%
SpartanNash Company SpartanNash Company $ 21.91 1.50  ▲ 7.35% 454,552 129%
NIC Inc. NIC Inc. $ 15.81 .57  ▲ 3.74% 655,348 124%
Dean Foods Company $ 17.46 .76  ▲ 4.55% 5,335,179 114%
Aruba Networks, Inc. Aruba Networks, Inc. $ 17.46 1.17  ▲ 7.18% 4,432,207 114%
Ruckus Wireless, Inc. $ 11.88 .87  ▲ 7.90% 3,395,345 114%
Macro Bank Inc. $ 46.02 2.21  ▲ 5.04% 395,286 102%
Bed Bath & Beyond Inc. Bed Bath & Beyond Inc. $ 59.61 1.28  ▲ 2.19% 6,049,595 81%
Allianceberstein Holding L.P. $ 26.82 .86  ▲ 3.31% 645,635 73%
Select a security's symbol for a quote summary.
As of 7/11/2014 4:05:00 PM