| Code | Name | High | Low | Close | Volume | Change | |
| AACC | Asset Acceptance Capital | 6.690 | 6.610 | 6.690 | 201,200 | 0.060 |  | 0.90 |  |
| AAIT | AC Asia Information Tech MSCI Ishares | 29.60 | 28.72 | 29.00 | 6,400 | 0.79 |  | 2.65 |  |
| AAME | Atlantic American Corp. | 3.700 | 3.600 | 3.680 | 14,000 | 0.060 |  | 1.66 |  |
| AAON | Aaon | 33.69 | 32.89 | 33.04 | 113,200 | 0.18 |  | 0.54 |  |
| AAPL | Apple Inc. | 446.2 | 435.8 | 442.1 | 12,620,700 | 0.8 |  | 0.18 |  |
| AAWW | Atlas Air Worldwide Holdings | 45.47 | 44.54 | 45.42 | 184,700 | 0.05 |  | 0.11 |  |
| AAXJ | All Country Asia Ex Jpn Idx MSCI Ishares | 59.76 | 59.06 | 59.74 | 457,600 | 0.67 |  | 1.11 |  |
| ABAX | Abaxis | 44.07 | 42.93 | 43.53 | 103,600 | 0.02 |  | 0.05 |  |
| ABCB | Ameris Bancorp | 16.14 | 15.85 | 16.09 | 24,400 | 0.03 |  | 0.19 |  |
| ABCD | Cambium Learning Group | 1.350 | 1.190 | 1.340 | 114,400 | 0.120 |  | 9.84 |  |
| ABCO | The Advisory Board Company | 50.99 | 50.02 | 50.19 | 208,800 | 0.52 |  | 1.03 |  |
| ABFS | Arkansas Best Corp. | 17.85 | 16.59 | 17.63 | 603,000 | 0.14 |  | 0.79 |  |
| ABIO | Arca Biopharma | 2.590 | 2.430 | 2.560 | 21,600 | 0.000 |  | 0.00 |  |
| ABMD | Abiomed | 21.78 | 21.39 | 21.72 | 610,800 | 0.11 |  | 0.50 |  |
| ABTL | Autobytel Inc. | 4.890 | 4.530 | 4.850 | 142,100 | 0.070 |  | 1.46 |  |
| ACAD | Acadia Pharmaceuticals Inc. | 13.85 | 12.81 | 13.79 | 2,095,800 | 0.37 |  | 2.76 |  |
| ACAS | American Capital | 14.06 | 13.80 | 14.01 | 4,783,200 | 0.21 |  | 1.48 |  |
| ACAT | Arctic Cat Inc. | 46.83 | 46.04 | 46.64 | 161,900 | 0.32 |  | 0.68 |  |
| ACCL | Accelrys | 8.630 | 8.460 | 8.630 | 113,700 | 0.020 |  | 0.23 |  |
| ACET | Aceto Corp. | 11.96 | 11.56 | 11.94 | 123,700 | 0.17 |  | 1.44 |  |
| ACFC | Atlantic Coast Federal Corp. | 5.190 | 5.030 | 5.170 | 4,000 | 0.000 |  | 0.00 |  |
| ACFN | Acorn Energy | 8.710 | 8.010 | 8.670 | 54,300 | 0.070 |  | 0.81 |  |
| ACGL | Arch Capital Group Ltd | 52.54 | 51.48 | 52.48 | 555,400 | 0.34 |  | 0.65 |  |
| ACHC | Acadia Healthcare Company Inc. | 32.78 | 32.02 | 32.74 | 584,600 | 0.54 |  | 1.68 |  |
| ACHN | Achillion Pharmaceuticals | 7.760 | 7.440 | 7.640 | 899,900 | 0.100 |  | 1.29 |  |
| ACIW | Aci Worldwide | 45.37 | 44.98 | 45.34 | 217,000 | 0.06 |  | 0.13 |  |
| ACLS | Axcelis Technologies | 1.560 | 1.450 | 1.500 | 565,300 | 0.050 |  | 3.45 |  |
| ACNB | Acnb Corp. | 16.75 | 16.65 | 16.75 | 2,500 | 0.10 |  | 0.60 |  |
| ACOR | Acorda Therapeutics | 32.48 | 31.26 | 32.23 | 248,600 | 0.15 |  | 0.47 |  |
| ACPW | Active Power | 4.330 | 4.070 | 4.230 | 14,500 | 0.060 |  | 1.40 |  |
| ACRX | Acelrx Pharmaceuticals | 7.650 | 6.800 | 7.450 | 643,000 | 0.190 |  | 2.62 |  |
| ACST | Acasti Pharma Inc | 2.560 | 2.350 | 2.560 | 50,900 | 0.060 |  | 2.40 |  |
| ACTG | Acacia Research Corp. | 23.63 | 23.15 | 23.52 | 322,900 | 0.07 |  | 0.30 |  |
| ACTS | Actions Semiconductor Co. | 3.010 | 2.950 | 2.980 | 26,900 | 0.020 |  | 0.67 |  |
| ACUR | Acura Pharmaceuticals | 2.390 | 2.250 | 2.360 | 267,900 | 0.020 |  | 0.85 |  |
| ACWI | ACWI Index MSCI Ishares | 53.21 | 52.49 | 53.17 | 837,500 | 0.33 |  | 0.62 |  |
| ACWX | ACWI Ex-US Index MSCI Ishares | 44.37 | 43.67 | 44.35 | 309,100 | 0.45 |  | 1.00 |  |
| ACXM | Acxiom Corp. | 21.61 | 20.87 | 21.46 | 376,300 | 0.20 |  | 0.94 |  |
| ADAT | Authentidate Holding | 1.230 | 1.150 | 1.160 | 35,100 | 0.060 |  | 4.92 |  |
| ADBE | Adobe Systems Incorporated | 43.14 | 42.57 | 42.77 | 3,382,600 | 0.40 |  | 0.93 |  |
| ADEP | Adept Technology | 3.600 | 3.420 | 3.540 | 7,600 | 0.010 |  | 0.28 |  |
| ADES | Ada-Es | 34.78 | 32.91 | 33.82 | 151,800 | 0.94 |  | 2.86 |  |
| ADI | Analog Devices | 45.53 | 44.49 | 45.49 | 2,468,400 | 0.06 |  | 0.13 |  |
| ADNC | Audience Inc. | 14.86 | 14.53 | 14.80 | 218,400 | 0.19 |  | 1.27 |  |
| ADP | Automatic Data Processing | 70.21 | 69.72 | 69.93 | 1,938,100 | 0.33 |  | 0.47 |  |
| ADRA | Asia 50 ADR Index Bldrs | 28.37 | 27.95 | 28.37 | 4,500 | 0.91 |  | 3.11 |  |
| ADRD | Dev Mkts 100 ADR Index Bldrs | 22.96 | 22.65 | 22.96 | 10,300 | 0.19 |  | 0.82 |  |
| ADRE | Emrg Mkts 50 ADR Index Bldrs | 38.39 | 37.87 | 38.38 | 28,200 | 0.23 |  | 0.60 |  |
| ADRU | Europe 100 ADR Index Bldrs | 22.17 | 21.98 | 21.98 | 700 | 0.50 |  | 2.22 |  |
| ADSK | Autodesk | 36.96 | 36.22 | 36.46 | 3,392,300 | 0.11 |  | 0.30 |  |
| ADTN | Adtran | 22.20 | 21.63 | 22.18 | 622,700 | 0.06 |  | 0.27 |  |
| ADUS | Addus Homecare Corp. | 15.89 | 14.52 | 15.79 | 203,800 | 0.12 |  | 0.75 |  |
| ADVS | Advent Software | 31.74 | 30.84 | 31.72 | 153,600 | 0.64 |  | 2.06 |  |
| AEGN | Aegoin Corp | 23.20 | 22.44 | 22.96 | 178,500 | 0.03 |  | 0.13 |  |
| AEGR | Aegerion Pharmaceuticals | 61.23 | 55.76 | 60.96 | 542,200 | 2.71 |  | 4.65 |  |
| AEHR | Aehr Test Systems | 1.400 | 1.220 | 1.390 | 10,400 | 0.120 |  | 9.45 |  |
| AEIS | Advanced Energy Industries | 18.51 | 18.06 | 18.15 | 243,500 | 0.34 |  | 1.84 |  |
| AEPI | Aep Industries Inc. | 83.30 | 81.76 | 81.96 | 11,000 | 1.44 |  | 1.73 |  |
| AERL | Asia Entertainment & Resources Ltd | 4.730 | 4.260 | 4.270 | 502,000 | 0.660 |  | 13.39 |  |
| AETI | American Electric Technologies | 6.080 | 5.930 | 5.970 | 20,700 | 0.070 |  | 1.16 |  |
| AEY | Addvantage Technologies Group | 2.240 | 2.200 | 2.210 | 5,700 | 0.010 |  | 0.45 |  |
| AEZS | Aeterna Zentaris | 2.040 | 1.960 | 2.030 | 185,500 | 0.030 |  | 1.46 |  |
| AFAM | Almost Family Inc | 19.48 | 19.30 | 19.48 | 25,800 | 0.05 |  | 0.26 |  |
| AFCB | Athens Bancshares Corp. | 17.99 | 17.99 | 17.99 | 100 | 0.26 |  | 1.42 |  |
| AFCE | Afc Enterprises | 33.37 | 32.41 | 33.35 | 120,800 | 0.26 |  | 0.79 |  |
| AFFX | Affymetrix | 3.720 | 3.530 | 3.680 | 252,700 | 0.010 |  | 0.27 |  |
| AFFY | Affymax | 1.400 | 1.300 | 1.400 | 3,040,900 | 0.000 |  | 0.00 |  |
| AFH | Atlas Financial Holdings Inc. | 7.370 | 7.250 | 7.370 | 12,600 | 0.120 |  | 1.66 |  |
| AFOP | Alliance Fiber Optic Products | 20.20 | 19.13 | 20.01 | 118,300 | 0.99 |  | 5.21 |  |
| AFSI | Amtrust Financial Services | 32.30 | 31.01 | 32.24 | 304,600 | 0.94 |  | 3.00 |  |
| AGEN | Agenus Inc. | 4.140 | 4.000 | 4.120 | 101,900 | 0.090 |  | 2.23 |  |
| AGII | Argo Group International Holdings Ltd | 42.86 | 41.95 | 42.57 | 96,200 | 0.45 |  | 1.05 |  |
| AGIIL | Argo Group International Holdin | 25.60 | 25.46 | 25.60 | 11,900 | 0.05 |  | 0.20 |  |
| AGNC | American Capital Agency | 28.15 | 27.04 | 28.05 | 12,014,000 | 0.24 |  | 0.85 |  |
| AGNCP | American Capital | 26.70 | 26.52 | 26.70 | 16,100 | 0.04 |  | 0.15 |  |
| AGYS | Agilysys | 11.36 | 11.01 | 11.34 | 24,700 | 0.14 |  | 1.25 |  |
| AHGP | Alliance Holdings Gp L.P. | 65.27 | 63.19 | 64.49 | 38,800 | 1.17 |  | 1.78 |  |
| AHPI | Allied Healthcare Products | 2.560 | 2.440 | 2.460 | 7,200 | 0.080 |  | 3.15 |  |
| AIMC | Altra Holdings | 29.15 | 28.60 | 29.10 | 144,600 | 0.30 |  | 1.04 |  |
| AINV | Apollo Investment Corp. | 8.840 | 8.350 | 8.660 | 3,628,000 | 0.120 |  | 1.41 |  |
| AIQ | Alliance Healthcare Services | 13.09 | 12.63 | 12.80 | 14,100 | 0.01 |  | 0.08 |  |
| AIRM | Air Methods Corp. | 37.15 | 35.00 | 37.10 | 847,600 | 1.73 |  | 4.89 |  |
| AIRT | Air T | 10.07 | 10.05 | 10.06 | 5,400 | 0.07 |  | 0.69 |  |
| AIXG | Aixtron Se | 16.35 | 15.90 | 16.12 | 509,500 | 0.32 |  | 1.95 |  |
| AKAM | Akamai Technologies | 46.58 | 45.72 | 46.35 | 1,849,600 | 0.23 |  | 0.50 |  |
| AKRX | Akorn | 14.62 | 14.33 | 14.59 | 541,100 | 0.04 |  | 0.27 |  |
| ALCO | Alico | 45.60 | 44.09 | 45.60 | 2,400 | 0.45 |  | 1.00 |  |
| ALCS | Alco Stores Inc | 9.470 | 9.270 | 9.300 | 4,800 | 0.030 |  | 0.32 |  |
| ALGN | Align Technology | 37.20 | 36.29 | 36.98 | 507,900 | 0.32 |  | 0.86 |  |
| ALGT | Allegiant Travel Company | 93.14 | 91.24 | 92.62 | 70,200 | 0.28 |  | 0.30 |  |
| ALIM | Alimera Sciences | 4.440 | 4.220 | 4.430 | 38,300 | 0.010 |  | 0.23 |  |
| ALKS | Alkermes | 33.17 | 28.59 | 33.00 | 2,452,700 | 1.25 |  | 3.94 |  |
| ALLB | Alliance Bank | 13.81 | 13.70 | 13.81 | 1,800 | 0.06 |  | 0.44 |  |
| ALLT | Allot Communications Ltd | 12.79 | 12.21 | 12.22 | 469,700 | 0.72 |  | 5.56 |  |
| ALNY | Alnylam Pharmaceuticals | 28.12 | 26.57 | 28.06 | 191,000 | 0.22 |  | 0.79 |  |
| ALOG | Analogic Corp. | 80.51 | 78.93 | 80.25 | 22,200 | 0.13 |  | 0.16 |  |
| ALOT | Astro-Med | 10.58 | 10.25 | 10.41 | 5,300 | 0.17 |  | 1.61 |  |
| ALSK | Alaska Communications Systems | 1.850 | 1.760 | 1.850 | 330,000 | 0.020 |  | 1.09 |  |
| ALTE | Alterra Capital Holdings Ltd | 32.81 | 32.17 | 32.55 | 2,375,100 | 0.35 |  | 1.09 |  |
| ALTI | Altair Nanotechnologies Inc. | 2.490 | 2.340 | 2.460 | 12,700 | 0.080 |  | 3.15 |  |
| ALTR | Altera Corp. | 32.81 | 32.29 | 32.71 | 3,372,100 | 0.09 |  | 0.27 |  |
| ALVR | Alvarion Ltd | 2.640 | 2.500 | 2.510 | 17,900 | 0.130 |  | 4.92 |  |
| ALXA | Alexza Pharmaceuticals | 4.590 | 4.410 | 4.510 | 617,300 | 0.160 |  | 3.43 |  |
| ALXN | Alexion Pharmaceuticals | 101.28 | 98.00 | 99.88 | 779,900 | 0.69 |  | 0.69 |  |
| AMAG | Amag Pharmaceuticals | 22.40 | 21.76 | 21.94 | 82,400 | 0.46 |  | 2.05 |  |
| AMAP | Autonavi Holdings | 11.59 | 11.13 | 11.54 | 185,800 | 0.02 |  | 0.17 |  |
| AMAT | Applied Materials | 14.63 | 14.34 | 14.60 | 15,548,700 | 0.06 |  | 0.41 |  |
| AMBA | Ambarella Inc. | 16.68 | 14.33 | 16.19 | 1,526,900 | 0.47 |  | 2.99 |  |
| AMBC | Ambac Financial Group Inc. | 25.64 | 24.65 | 25.34 | 1,036,700 | 0.59 |  | 2.28 |  |
| AMBCW | Ambac Financial Group Inc. | 13.63 | 12.71 | 13.34 | 75,800 | 0.40 |  | 2.91 |  |
| AMBI | Ambit Biosciences Corporation | 7.450 | 6.750 | 7.170 | 74,400 | 0.420 |  | 6.22 |  |
| AMBT | Ambient Corp | 1.880 | 1.800 | 1.850 | 15,700 | 0.020 |  | 1.07 |  |
| AMCC | Applied Micro Circuits Corp. | 7.650 | 7.460 | 7.610 | 359,200 | 0.030 |  | 0.39 |  |
| AMCF | Andatee China Marine Fuel Services | 0.6200 | 0.5200 | 0.5900 | 58,700 | 0.0500 |  | 7.81 |  |
| AMCN | Airmedia Group Inc | 1.900 | 1.760 | 1.890 | 26,400 | 0.050 |  | 2.58 |  |
| AMCX | Amc Networks Inc. | 66.86 | 65.26 | 66.69 | 850,100 | 0.36 |  | 0.54 |  |
| AMED | Amedisys Inc | 11.43 | 10.85 | 11.43 | 262,400 | 0.35 |  | 3.16 |  |
| AMGN | Amgen Inc. | 106.3 | 103.0 | 105.6 | 3,169,400 | 1.1 |  | 1.04 |  |
| AMIC | American Independence | 7.360 | 7.360 | 7.360 | 4,600 | 0.090 |  | 1.21 |  |
| AMKR | Amkor Technology | 4.590 | 4.510 | 4.580 | 593,300 | 0.020 |  | 0.43 |  |
| AMNB | American National Bankshares | 21.31 | 20.80 | 21.08 | 3,500 | 0.06 |  | 0.29 |  |
| AMOT | Allied Motion Technologies | 7.030 | 6.590 | 7.030 | 19,700 | 0.450 |  | 6.84 |  |
| AMOV | America Movil S.A.B. De C.V. | 20.05 | 18.04 | 20.05 | 9,800 | 0.05 |  | 0.25 |  |
| AMPE | Ampio Pharmaceutical | 5.100 | 4.720 | 5.080 | 529,500 | 0.390 |  | 8.32 |  |
| AMRB | American River Bankshares | 8.030 | 7.900 | 7.900 | 11,300 | 0.060 |  | 0.77 |  |
| AMRI | Albany Molecular Research | 11.11 | 10.45 | 11.05 | 262,600 | 0.08 |  | 0.73 |  |
| AMRN | Amarin Corporation Plc | 7.010 | 6.750 | 6.920 | 3,266,700 | 0.030 |  | 0.44 |  |
| AMRS | Amyris | 2.880 | 2.790 | 2.850 | 120,800 | 0.040 |  | 1.38 |  |
| AMSC | American Superconductor Corp. | 2.760 | 2.610 | 2.680 | 295,800 | 0.030 |  | 1.11 |  |
| AMSF | Amerisafe | 33.10 | 32.29 | 32.93 | 29,300 | 0.31 |  | 0.95 |  |
| AMSG | Amsurg | 36.10 | 35.50 | 36.04 | 197,500 | 0.19 |  | 0.53 |  |
| AMSWA | American Software | 8.280 | 8.190 | 8.230 | 31,300 | 0.080 |  | 0.96 |  |
| AMWD | American Woodmark Corp. | 35.77 | 34.43 | 35.65 | 129,200 | 0.69 |  | 1.97 |  |
| AMZN | Amazon.Com | 263.2 | 259.6 | 261.8 | 2,007,800 | 1.2 |  | 0.44 |  |
| ANAC | Anacor Pharmaceuticals | 5.680 | 5.400 | 5.470 | 328,200 | 0.020 |  | 0.36 |  |
| ANAD | Anadigics | 2.000 | 1.900 | 2.000 | 541,600 | 0.080 |  | 4.17 |  |
| ANAT | American National Insurance | 99.39 | 98.52 | 99.39 | 7,700 | 0.01 |  | 0.01 |  |
| ANCB | Anchor Bancorp | 17.30 | 16.92 | 17.30 | 600 | 0.30 |  | 1.76 |  |
| ANCI | American Caresource Holdings | 1.990 | 1.760 | 1.760 | 1,100 | 0.250 |  | 12.44 |  |
| ANCX | Access National Corp. | 12.72 | 12.13 | 12.55 | 30,600 | 0.26 |  | 2.03 |  |
| ANDA | Andina Acquisition Corporation | 9.940 | 9.920 | 9.920 | 15,500 | 0.020 |  | 0.20 |  |
| ANDAU | Andina Acquisition Corporation | 10.12 | 10.12 | 10.12 | 300 | 0.01 |  | 0.10 |  |
| ANDAW | Andina Acquisition Corporation | 0.2000 | 0.2000 | 0.2000 | 17,800 | 0.0000 |  | 0.00 |  |
| ANDE | The Andersons | 53.49 | 52.49 | 53.16 | 172,300 | 0.84 |  | 1.56 |  |
| ANEN | Anaren | 23.94 | 22.72 | 23.73 | 38,500 | 0.31 |  | 1.29 |  |
| ANGI | Angie's List Inc. | 24.17 | 22.07 | 23.70 | 836,700 | 0.71 |  | 3.09 |  |
| ANGO | Angiodynamics | 10.76 | 10.59 | 10.67 | 95,400 | 0.02 |  | 0.19 |  |
| ANIK | Anika Therapeutics Inc. | 14.05 | 13.36 | 14.03 | 59,700 | 0.28 |  | 2.04 |  |
| ANLY | Analysts International Corp. | 3.940 | 3.830 | 3.940 | 9,200 | 0.090 |  | 2.34 |  |
| ANSS | Ansys | 73.54 | 72.18 | 73.44 | 612,200 | 0.86 |  | 1.18 |  |
| ANTH | Anthera Pharmaceuticals | 0.6100 | 0.5800 | 0.6100 | 538,700 | 0.0100 |  | 1.67 |  |
| ANTP | Phazar Corp | 1.260 | 1.210 | 1.260 | 600 | 0.050 |  | 4.13 |  |
| AOSL | Alpha And Omega Semiconductor | 7.720 | 7.400 | 7.520 | 96,100 | 0.010 |  | 0.13 |  |
| APAGF | Apco Oil And Gas International | 11.42 | 10.86 | 11.22 | 13,200 | 0.41 |  | 3.53 |  |
| APEI | American Public Education | 38.50 | 38.01 | 38.41 | 91,800 | 0.04 |  | 0.10 |  |
| APFC | American Pacific Corp. | 28.00 | 27.21 | 27.75 | 29,900 | 0.14 |  | 0.51 |  |
| APOG | Apogee Enterprises | 27.46 | 26.41 | 27.26 | 123,300 | 0.21 |  | 0.78 |  |
| APOL | Apollo Group | 20.99 | 20.12 | 20.85 | 2,278,200 | 0.24 |  | 1.16 |  |
| APPY | Aspenbio Pharma | 1.610 | 1.350 | 1.360 | 756,500 | 0.240 |  | 15.00 |  |
| APRI | Apricus Biosciences Inc | 2.800 | 2.590 | 2.650 | 5,313,000 | 0.650 |  | 19.70 |  |
| APSA | Alto Palermo S.A. | 16.40 | 16.14 | 16.35 | 5,700 | 0.14 |  | 0.85 |  |
| APWC | Asia Pac Wire &Cable | 4.060 | 4.000 | 4.040 | 8,600 | 0.010 |  | 0.25 |  |
| AQU | Aquasition Corp. | 9.780 | 9.780 | 9.780 | 100 | 0.000 |  | 0.00 |  |
| AQUUU | Aquasition Corp. | 10.14 | 10.06 | 10.06 | 2,400 | 0.04 |  | 0.40 |  |
| ARAY | Accuray Incorporated | 5.420 | 5.240 | 5.290 | 1,031,900 | 0.010 |  | 0.19 |  |
| ARCC | Ares Capital Corp. | 17.89 | 17.65 | 17.79 | 2,243,200 | 0.19 |  | 1.06 |  |
| ARCI | Appliance Recycling Centers | 2.100 | 2.020 | 2.050 | 3,000 | 0.020 |  | 0.99 |  |
| ARCP | American Realty Capital Propert | 16.73 | 15.95 | 16.45 | 4,657,000 | 0.50 |  | 2.95 |  |
| ARCW | Arc Wireless Solutions | 4.950 | 4.940 | 4.940 | 200 | 0.010 |  | 0.20 |  |
| ARDNA | Arden Group | 104.2 | 103.4 | 103.4 | 300 | 0.7 |  | 0.68 |  |
| AREX | Approach Resources Inc. | 26.49 | 24.78 | 26.33 | 1,126,300 | 0.38 |  | 1.42 |  |
| ARIA | Ariad Pharmaceuticals | 20.00 | 17.76 | 19.44 | 4,705,400 | 1.01 |  | 5.48 |  |
| ARII | American Railcar Industries | 33.63 | 32.05 | 33.57 | 243,200 | 0.14 |  | 0.42 |  |
| ARKR | Ark Restaurants | 21.59 | 20.75 | 21.45 | 2,600 | 0.10 |  | 0.46 |  |
| ARLP | Alliance Resource Partners L.P. | 75.90 | 72.76 | 75.53 | 142,500 | 0.94 |  | 1.23 |  |
| ARMH | Arm Holdings Plc | 45.43 | 44.29 | 45.37 | 2,769,400 | 0.45 |  | 0.98 |  |
| ARNA | Arena Pharmaceuticals | 8.120 | 7.840 | 8.060 | 4,177,900 | 0.140 |  | 1.77 |  |
| AROW | Arrow Financial Corp. | 24.65 | 24.41 | 24.65 | 15,700 | 0.14 |  | 0.57 |  |
| ARQL | Arqule | 2.810 | 2.650 | 2.750 | 167,100 | 0.040 |  | 1.48 |  |
| ARRS | Arris Group Inc | 15.43 | 14.72 | 15.10 | 2,846,600 | 0.09 |  | 0.60 |  |
| ARRY | Array Biopharma Inc. | 5.730 | 5.520 | 5.660 | 1,704,500 | 0.140 |  | 2.41 |  |
| ARTC | Arthrocare Corp. | 33.64 | 32.98 | 33.64 | 94,900 | 0.31 |  | 0.93 |  |
| ARTNA | Artesian Resources Corp. | 22.73 | 22.06 | 22.41 | 7,200 | 0.26 |  | 1.17 |  |
| ARTW | Art'S-Way Manufacturing Co. | 7.650 | 7.500 | 7.650 | 7,600 | 0.010 |  | 0.13 |  |
| ARTX | Arotech Corp. | 1.220 | 1.180 | 1.200 | 3,200 | 0.040 |  | 3.23 |  |
| ARUN | Aruba Networks | 13.31 | 12.80 | 13.26 | 3,772,800 | 0.19 |  | 1.45 |  |
| ARWR | Arrowhead Research Corp. | 2.170 | 2.140 | 2.150 | 33,500 | 0.030 |  | 1.38 |  |
| ASBB | Asb Bancorp Inc. | 16.50 | 16.30 | 16.35 | 800 | 0.08 |  | 0.49 |  |
| ASBC | Associated Banc-Corp | 15.40 | 15.11 | 15.32 | 1,207,900 | 0.07 |  | 0.45 |  |
| ASBCW | Associated Banc-Corp | 1.550 | 1.550 | 1.550 | 500 | 0.040 |  | 2.52 |  |
| ASBI | Ameriana Bancorp | 10.100 | 9.420 | 9.850 | 3,600 | 0.100 |  | 1.01 |  |
| ASCA | Ameristar Casinos | 26.46 | 26.38 | 26.43 | 203,300 | 0.01 |  | 0.04 |  |
| ASCMA | Ascent Media Corp. | 72.80 | 69.93 | 71.49 | 54,300 | 1.51 |  | 2.07 |  |
| ASDR | Velocityshares Emerging Asia Dr | 53.28 | 53.28 | 53.28 | 100 | 0.13 |  | 0.24 |  |
| ASEI | American Science And Engineering | 60.21 | 58.40 | 59.80 | 30,000 | 1.23 |  | 2.10 |  |
| ASFI | Asta Funding | 9.030 | 8.880 | 8.960 | 7,400 | 0.040 |  | 0.44 |  |
| ASIA | Asiainfo-Linkage | 11.60 | 11.52 | 11.55 | 1,589,900 | 0.02 |  | 0.17 |  |
| ASMI | Asm International N.V. | 34.34 | 33.85 | 34.24 | 5,300 | 0.15 |  | 0.44 |  |
| ASML | Asml Holding N.V. | 80.51 | 79.60 | 80.06 | 1,495,400 | 0.02 |  | 0.02 |  |
| ASNA | Ascena Retail Group | 20.33 | 19.80 | 20.27 | 919,600 | 0.20 |  | 1.00 |  |
| ASPS | Altisource Portfolio Solutions S.A. | 92.87 | 90.63 | 92.83 | 163,300 | 0.09 |  | 0.10 |  |
| ASRV | Ameriserv Financial Inc. | 3.070 | 2.950 | 3.050 | 9,900 | 0.010 |  | 0.33 |  |
| ASRVP | Ameriserv Financial Inc. | 26.29 | 26.29 | 26.29 | 100 | 0.41 |  | 1.54 |  |
| ASTC | Astrotech Corp. | 0.8000 | 0.7500 | 0.8000 | 29,600 | 0.0200 |  | 2.56 |  |
| ASTE | Astec Industries | 34.92 | 34.14 | 34.71 | 33,300 | 0.07 |  | 0.20 |  |
| ASTI | Ascent Solar Technologies | 0.8900 | 0.7200 | 0.8400 | 1,494,900 | 0.0300 |  | 3.70 |  |
| ASTM | Aastrom Biosciences | 0.5700 | 0.5500 | 0.5600 | 363,400 | 0.0100 |  | 1.75 |  |
| ASTX | Astex Pharmaceuticals Inc | 5.280 | 4.940 | 5.120 | 1,184,000 | 0.080 |  | 1.54 |  |
| ASUR | Asure Software Inc | 5.990 | 5.820 | 5.850 | 19,800 | 0.040 |  | 0.69 |  |
| ASYS | Amtech Systems | 4.700 | 4.260 | 4.660 | 57,700 | 0.170 |  | 3.79 |  |
| ATAI | Ata Inc. | 4.800 | 4.130 | 4.300 | 3,900 | 0.250 |  | 6.17 |  |
| ATAX | America First Tax Exempt L.P. | 6.910 | 6.830 | 6.860 | 35,300 | 0.010 |  | 0.15 |  |
| ATEA | Astea International | 2.400 | 2.360 | 2.400 | 4,200 | 0.010 |  | 0.42 |  |
| ATEC | Alphatec Holdings | 1.950 | 1.880 | 1.940 | 62,600 | 0.030 |  | 1.57 |  |
| ATHN | Athenahealth | 86.35 | 83.76 | 85.24 | 361,500 | 0.03 |  | 0.04 |  |
| ATHX | Athersys | 1.860 | 1.810 | 1.810 | 334,700 | 0.050 |  | 2.69 |  |
| ATLC | Atlanticus Holdings Corp. | 3.900 | 3.850 | 3.860 | 18,900 | 0.100 |  | 2.66 |  |
| ATLO | Ames National Corp. | 20.35 | 20.04 | 20.18 | 3,400 | 0.02 |  | 0.10 |  |
| ATMI | Atmi Inc. | 23.44 | 22.80 | 23.36 | 76,300 | 0.24 |  | 1.04 |  |
| ATML | Atmel Corp. | 7.490 | 7.020 | 7.490 | 7,028,400 | 0.270 |  | 3.74 |  |
| ATNI | Atlantic Tele-Network | 50.68 | 48.40 | 50.54 | 33,100 | 1.68 |  | 3.44 |  |
| ATNY | Api Technologies | 2.670 | 2.630 | 2.660 | 27,200 | 0.010 |  | 0.38 |  |
| ATOS | Atossa Genetics Inc. | 5.250 | 5.100 | 5.130 | 46,300 | 0.150 |  | 2.84 |  |
| ATRC | Atricure | 9.300 | 9.070 | 9.300 | 43,400 | 0.160 |  | 1.75 |  |
| ATRI | Atrion Corp. | 212.0 | 210.0 | 211.4 | 1,400 | 0.4 |  | 0.18 |  |
| ATRM | Aetrium Inc. | 0.6600 | 0.6300 | 0.6500 | 12,000 | 0.0100 |  | 1.52 |  |
| ATRO | Astronics Corp. | 34.67 | 33.53 | 34.63 | 44,500 | 0.56 |  | 1.64 |  |
| ATRS | Antares Pharma | 4.060 | 3.870 | 4.050 | 1,095,800 | 0.090 |  | 2.27 |  |
| ATSG | Air Transport Services Group Inc | 6.070 | 5.780 | 6.060 | 161,300 | 0.210 |  | 3.59 |  |
| ATTU | Attunity Ltd | 5.860 | 5.530 | 5.800 | 19,700 | 0.080 |  | 1.40 |  |
| ATVI | Activision Blizzard Inc | 15.62 | 15.16 | 15.54 | 8,069,900 | 0.25 |  | 1.64 |  |
| ATX | Cross [A.T.] Company | 14.07 | 13.93 | 14.00 | 7,900 | 0.00 |  | 0.00 |  |
| AUBN | Auburn National Bancorporation | 21.84 | 21.81 | 21.84 | 200 | 0.28 |  | 1.30 |  |
| AUDC | Audiocodes Ltd | 4.100 | 3.890 | 4.030 | 58,500 | 0.030 |  | 0.75 |  |
| AUXL | Auxilium Pharmaceuticals | 15.43 | 14.95 | 15.26 | 455,300 | 0.02 |  | 0.13 |  |
| AVAV | Aerovironment | 20.13 | 19.52 | 20.10 | 131,100 | 0.24 |  | 1.21 |  |
| AVEO | Aveo Pharmaceuticals | 2.740 | 2.550 | 2.700 | 2,487,300 | 0.040 |  | 1.50 |  |
| AVGO | Avago Technologies | 34.35 | 33.84 | 33.97 | 2,855,300 | 0.59 |  | 1.71 |  |
| AVHI | Av Homes Inc | 13.02 | 12.74 | 12.85 | 8,200 | 0.08 |  | 0.62 |  |
| AVID | Avid Technology | 6.790 | 6.560 | 6.710 | 111,700 | 0.110 |  | 1.61 |  |
| AVNR | Avanir Pharmaceuticals Inc | 3.400 | 3.150 | 3.400 | 903,200 | 0.150 |  | 4.62 |  |
| AVNW | Aviat Networks | 2.690 | 2.530 | 2.690 | 145,500 | 0.080 |  | 3.07 |  |
| AWAY | Homeaway Inc. | 30.72 | 28.54 | 30.47 | 734,300 | 0.03 |  | 0.10 |  |
| AWRE | Aware | 5.120 | 5.050 | 5.050 | 70,700 | 0.030 |  | 0.59 |  |
| AXAS | Abraxas Petroleum Corp. | 2.480 | 2.330 | 2.470 | 468,100 | 0.020 |  | 0.82 |  |
| AXDX | Accelerate Diagnostics Inc. | 8.600 | 8.060 | 8.600 | 54,000 | 0.350 |  | 4.24 |  |
| AXFN | ACWI Ex-US Financials MSCI Ishares | 25.41 | 24.63 | 25.35 | 2,300 | 0.36 |  | 1.40 |  |
| AXJS | AC Asia Ex Japan Smallcap MSCI Ishares | 60.57 | 59.00 | 59.00 | 500 | 2.02 |  | 3.31 |  |
| AXTI | Axt Inc | 2.920 | 2.800 | 2.870 | 110,100 | 0.010 |  | 0.35 |  |
| AZPN | Aspen Technology | 30.13 | 29.29 | 30.11 | 426,000 | 0.22 |  | 0.74 |  |