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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.

Up on Unusual Volume


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

YY

 YY Inc. YY Inc. $ 28.81 4.23  17.21% 2,166,757 581%

SKS

 Saks Incorporated $ 13.67 1.39  11.32% 12,264,501 548%

MNRO

 Monro Muffler Brake, Inc. Monro Muffler Brake, Inc. $ 47.28 3.17  7.19% 1,917,527 513%

SNE

 Sony Corp Ord $ 22.91 1.94  9.25% 22,386,764 424%

CBST

 Cubist Pharmaceuticals, Inc. Cubist Pharmaceuticals, Inc. $ 55.46 1.98  3.70% 3,302,575 303%

WCRX

 Warner Chilcott plc Warner Chilcott plc $ 20.61 1.01  5.15% 24,529,934 299%

BRKR

 Bruker Corporation Bruker Corporation $ 17.36 .60  3.58% 3,000,048 274%

OPEN

 OpenTable, Inc. OpenTable, Inc. $ 69.79 5.67  8.84% 2,247,108 244%

TDW

 Tidewater Inc. $ 58.67 1.07  1.86% 2,151,365 229%

MDT

 Medtronic, Inc. $ 52.35 2.46  4.93% 14,006,267 226%

RXN

 Rexnord Corporation $ 19.03 1.20  6.73% 705,634 205%

LPI

 Laredo Petroleum Holdings, Inc. $ 19.95 .78  4.07% 1,714,755 202%

ABFS

 Arkansas Best Corporation Arkansas Best Corporation $ 18.67 .93  5.24% 1,464,387 198%

MRK

 Merck & Company, Inc. $ 47.33 2.12  4.69% 47,027,336 193%

CTCT

 Constant Contact, Inc. Constant Contact, Inc. $ 15.16 .55  3.76% 716,246 186%

BABY

 Natus Medical Incorporated Natus Medical Incorporated $ 15.11 .87  6.11% 340,372 179%

JOSB

 Jos. A. Bank Clothiers, Inc. Jos. A. Bank Clothiers, Inc. $ 47.73 1.64  3.56% 1,462,734 175%

YRCW

 YRC Worldwide, Inc. YRC Worldwide, Inc. $ 23.05 .99  4.49% 1,169,789 174%

ET

 ExactTarget, Inc. $ 23.49 .54  2.35% 1,239,696 161%

EDU

 New Oriental Education & Technology Group, Inc. $ 20.17 .87  4.51% 4,938,252 155%

GTS

 Triple-S Management Corporation $ 19.31 .88  4.77% 208,255 153%

CIR

 CIRCOR International, Inc. $ 51.30 .86  1.71% 189,135 146%

WPP

 Wausau Paper Corp. $ 11.02 .82  8.04% 538,899 145%

ODFL

 Old Dominion Freight Line, Inc. Old Dominion Freight Line, Inc. $ 42.88 .95  2.27% 1,396,401 144%

EPAM

 EPAM Systems, Inc. $ 23.93 .91  3.95% 396,140 137%

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As of 5/21/2013 4:05:00 PM