| Symbol | Name | Last Trade | Change | Volume |
|---|
| A | Agilent Technologies Inc. | 46.91 11:14PM |  1.35 (2.96%) | 3,496,007 | | AA | Alcoa Inc. | 8.70 11:14PM | 0.09 (1.05%) | 9,965,196 | | AACC | Asset Acceptance Capital Corp. | 6.63 10:51PM | 0.03 (0.45%) | 21,364 | | AAN | Aaron's, Inc. | 28.96 11:14PM | 0.24 (0.84%) | 150,629 | | AAON | AAON Inc. | 32.32 11:08PM | 0.43 (1.35%) | 30,501 | | AAP | Advance Auto Parts Inc. | 86.56 11:12PM | 0.40 (0.46%) | 356,717 | | AAPL | Apple Inc. | 440.91 11:14PM | 7.65 (1.77%) | 10,803,393 | | AAT | American Assets Trust, Inc. | 34.96 11:12PM | 0.14 (0.40%) | 54,784 | | AAWW | Atlas Air Worldwide Holdings Inc. | 46.57 11:11PM | 0.48 (1.04%) | 115,493 | | ABAX | Abaxis, Inc. | 44.78 11:12PM | 0.57 (1.26%) | 36,011 | | ABC | AmerisourceBergen Corporation | 54.95 11:14PM | 0.04 (0.07%) | 1,081,743 | | ABCB | Ameris Bancorp | 16.41 11:10PM | 0.08 (0.49%) | 9,667 | | ABCD | Cambium Learning Group, Inc. | 1.18 18 May 12:14AM | 0.00 (0.00%) | 4,400 | | ABCO | The Advisory Board Company | 50.30 11:13PM | 0.34 (0.68%) | 141,655 | | ABFS | Arkansas Best Corporation | 17.71 11:12PM | 0.31 (1.76%) | 302,366 | | ABG | Asbury Automotive Group, Inc. | 41.78 11:13PM | 0.07 (0.16%) | 39,778 | | ABM | ABM Industries Incorporated | 23.40 11:12PM | 0.11 (0.47%) | 123,695 | | ABMD | ABIOMED, Inc. | 23.23 11:12PM | 0.10 (0.41%) | 186,088 | | ABR | Arbor Realty Trust Inc. | 7.28 11:09PM | 0.06 (0.83%) | 116,212 | | ABT | Abbott Laboratories | 37.73 11:14PM | 1.14 (3.12%) | 4,811,335 | | ABTL | Autobytel Inc. | 4.18 11:01PM | 0.03 (0.83%) | 27,778 | | ACAD | ACADIA Pharmaceuticals Inc. | 14.24 11:14PM | 0.97 (7.32%) | 5,505,547 | | ACAT | Arctic Cat Inc. | 46.95 11:12PM | 0.03 (0.06%) | 54,487 | | ACC | American Campus Communities, Inc. | 44.65 11:11PM | 0.15 (0.33%) | 163,374 | | ACCL | Accelrys Inc. | 8.67 11:10PM | 0.00 (0.00%) | 59,032 | | ACCO | ACCO Brands Corporation | 7.40 11:12PM | 0.06 (0.82%) | 415,825 | | ACE | ACE Limited | 91.16 11:14PM | 0.49 (0.53%) | 794,133 | | ACET | Aceto Corp. | 11.96 11:13PM | 0.40 (3.46%) | 174,716 | | ACFN | Acorn Energy, Inc. | 8.00 11:13PM | 0.29 (3.50%) | 34,087 | | ACGL | Arch Capital Group Ltd. | 53.67 11:14PM | 0.10 (0.19%) | 335,355 | | ACHC | Acadia Healthcare Company, Inc. | 33.31 11:13PM | 1.06 (3.08%) | 131,947 | | ACHN | Achillion Pharmaceuticals, Inc. | 7.59 11:14PM | 0.18 (2.32%) | 425,206 | | ACI | Arch Coal Inc. | 5.31 11:14PM | 0.30 (5.99%) | 9,104,577 | | ACIW | ACI Worldwide, Inc. | 45.07 11:12PM | 0.14 (0.31%) | 104,045 | | ACLS | Axcelis Technologies Inc. | 1.56 11:14PM | 0.07 (4.36%) | 1,369,201 | | ACM | AECOM Technology Corporation | 31.68 11:13PM | 0.28 (0.89%) | 332,936 | | ACN | Accenture plc | 82.49 11:14PM | 0.25 (0.30%) | 1,787,591 | | ACNB | ACNB Corp. | 16.60 10:01PM | 0.33 (1.95%) | 2,875 | | ACO | AMCOL International Corporation | 32.21 11:13PM | 0.16 (0.50%) | 24,441 | | ACOR | Acorda Therapeutics, Inc. | 32.23 11:14PM | 0.71 (2.16%) | 260,795 | | ACPW | Active Power Inc. | 4.29 11:05PM | 0.07 (1.71%) | 59,889 | | ACRE | Ares Commercial Real Estate Corporation | 16.92 11:12PM | 0.06 (0.35%) | 28,094 | | ACRX | AcelRx Pharmaceuticals, Inc. | 6.62 11:12PM | 0.06 (0.92%) | 185,803 | | ACTG | Acacia Research Corporation | 24.36 11:12PM | 0.74 (3.13%) | 297,951 | | ACTV | The Active Network, Inc. | 6.14 11:10PM | 0.11 (1.76%) | 150,171 | | ACU | Acme United Corp. | 12.86 18 May 1:29AM | 0.13 (1.00%) | 1,400 | | ACUR | Acura Pharmaceuticals, Inc. | 2.39 11:12PM | 0.04 (1.70%) | 679,989 | | ACW | Accuride Corp. | 5.57 11:13PM | 0.02 (0.36%) | 82,102 | | ACXM | Acxiom Corporation | 21.65 11:13PM | 0.01 (0.05%) | 206,812 |
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