| Symbol | Name | Last Trade | Change | Volume |
|---|
| AETI | American Electric Technologies, Inc | 6.17 May 17 | 0.01 (0.16%) | 14,598 | | AEY | ADDvantage Technologies Group Inc. | 2.19 May 17 | 0.02 (0.90%) | 7,718 | | AEZS | N/A | 2.10 May 17 | 0.04 (1.94%) | 224,282 | | AFAM | Almost Family Inc. | 19.77 May 17 | 0.16 (0.82%) | 27,541 | | AFCB | Athens Bancshares Corporation | 18.44 May 16 | 0.00 (0.00%) | 0 | | AFCE | AFC Enterprises Inc. | 33.64 May 17 | 0.01 (0.03%) | 258,297 | | AFFX | Affymetrix Inc. | 3.69 May 17 | 0.02 (0.54%) | 349,579 | | AFFY | Affymax, Inc. | 1.33 May 17 | 0.10 (6.99%) | 6,491,832 | | AFH | Atlas Financial Holdings, Inc. | 7.35 May 17 | 0.01 (0.14%) | 42,151 | | AFOP | Alliance Fiber Optic Products Inc. | 16.33 May 17 | 1.54 (8.62%) | 324,542 | | AFSI | AmTrust Financial Services, Inc. | 32.28 May 17 | 0.05 (0.15%) | 410,004 | | AGEN | Agenus Inc. | 4.25 May 17 | 0.01 (0.23%) | 134,629 | | AGII | Argo Group International Holdings, Ltd. | 44.89 May 17 | 0.34 (0.75%) | 76,087 | | AGNC | American Capital Agency Corp. | 29.65 May 17 | 0.13 (0.44%) | 9,403,358 | | AGYS | Agilysys Inc. | 11.72 May 17 | 0.01 (0.09%) | 61,329 | | AHGP | Alliance Holdings GP, L.P. | 61.12 May 17 | 0.54 (0.89%) | 210,259 | | AHPI | Allied Healthcare Products Inc. | 2.55 May 17 | 0.04 (1.59%) | 6,911 | | AIMC | Altra Holdings, Inc. | 28.88 May 17 | 1.10 (3.96%) | 187,833 | | AIQ | Alliance Healthcare Services, Inc. | 12.59 May 17 | 0.07 (0.56%) | 9,623 | | AIRM | Air Methods Corp. | 34.55 May 17 | 0.10 (0.29%) | 401,920 | | AIRT | Air T Inc. | 10.01 May 17 | 0.01 (0.10%) | 3,900 | | AIXG | Aixtron SE | 15.81 May 17 | 0.48 (3.13%) | 311,105 | | AKAM | Akamai Technologies, Inc. | 47.49 May 17 | 0.56 (1.19%) | 2,257,603 | | AKRX | Akorn, Inc. | 14.50 May 17 | 0.05 (0.35%) | 287,665 | | ALCO | Alico Inc. | 45.49 May 17 | 0.59 (1.31%) | 19,475 | | ALCS | ALCO Stores, Inc. | 9.29 May 17 | 0.05 (0.54%) | 400 | | ALGN | Align Technology Inc. | 37.59 May 17 | 0.74 (2.01%) | 1,014,213 | | ALGT | Allegiant Travel Company | 95.23 May 17 | 0.52 (0.55%) | 92,920 | | ALIM | Alimera Sciences, Inc. | 4.18 May 17 | 0.10 (2.34%) | 229,247 | | ALKS | Alkermes plc | 31.69 May 17 | 1.36 (4.48%) | 1,388,390 | | ALLB | Alliance Bancorp Inc of Pennsylvania | 13.70 May 17 | 0.01 (0.07%) | 100 | | ALLT | Allot Communications Ltd. | 13.29 May 17 | 0.01 (0.08%) | 484,705 | | ALNY | Alnylam Pharmaceuticals, Inc. | 27.44 May 17 | 0.23 (0.85%) | 520,072 | | ALOG | Analogic Corporation | 82.35 May 17 | 0.99 (1.22%) | 38,345 | | ALOT | Astro-Med Inc. | 10.60 May 17 | 0.08 (0.75%) | 4,201 | | ALSK | Alaska Communications Systems Group Inc. | 1.91 May 17 | 0.04 (2.14%) | 329,097 | | ALTI | Altair Nanotechnologies, Inc. | 2.25 May 17 | 0.22 (8.91%) | 10,505 | | ALTR | Altera Corp. | 34.11 May 17 | 0.81 (2.43%) | 3,885,808 | | ALVR | Alvarion Ltd. | 2.72 May 17 | 0.01 (0.34%) | 28,118 | | ALXA | Alexza Pharmaceuticals Inc. | 4.39 May 17 | 0.04 (0.90%) | 536,012 | | ALXN | Alexion Pharmaceuticals, Inc. | 102.90 May 17 | 1.08 (1.06%) | 977,654 | | AMAG | AMAG Pharmaceuticals, Inc. | 25.37 May 17 | 0.02 (0.08%) | 145,568 | | AMAP | AutoNavi Holdings Limited | 12.23 May 17 | 0.08 (0.65%) | 378,835 | | AMAT | Applied Materials, Inc. | 14.96 May 17 | 0.30 (2.05%) | 22,523,375 | | AMBA | Ambarella, Inc. | 15.24 May 17 | 0.05 (0.33%) | 535,472 | | AMBC | Ambac Financial Group, Inc. | 26.03 May 17 | 2.36 (9.97%) | 2,243,619 | | AMBT | Ambient Corporation | 2.02 May 17 | 0.10 (5.21%) | 12,145 | | AMCC | Applied Micro Circuits Corp. | 7.79 May 17 | 0.07 (0.91%) | 368,500 | | AMCF | Andatee China Marine Fuel Services Corporation | 0.60 May 17 | 0.07 (10.29%) | 13,370 | | AMCN | AirMedia Group Inc. | 1.88 May 17 | 0.01 (0.53%) | 37,647 |
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