| Code | Name | High | Low | Close | Volume | Change | |
| AACC | Asset Acceptance Capital | 6.710 | 6.630 | 6.700 | 252,600 | 0.010 |  | 0.15 |  |
| AAIT | AC Asia Information Tech MSCI Ishares | 29.32 | 28.90 | 29.08 | 4,800 | 0.08 |  | 0.28 |  |
| AAME | Atlantic American Corp. | 3.860 | 3.650 | 3.860 | 31,400 | 0.180 |  | 4.89 |  |
| AAON | Aaon | 33.70 | 32.59 | 33.47 | 98,700 | 0.43 |  | 1.30 |  |
| AAPL | Apple Inc. | 445.7 | 440.4 | 445.2 | 9,841,800 | 3.0 |  | 0.68 |  |
| AAWW | Atlas Air Worldwide Holdings | 45.44 | 44.20 | 45.31 | 164,400 | 0.11 |  | 0.24 |  |
| AAXJ | All Country Asia Ex Jpn Idx MSCI Ishares | 59.35 | 59.03 | 59.19 | 2,295,900 | 0.55 |  | 0.92 |  |
| ABAX | Abaxis | 44.07 | 43.12 | 43.65 | 52,300 | 0.12 |  | 0.28 |  |
| ABCB | Ameris Bancorp | 16.39 | 15.90 | 16.39 | 18,600 | 0.30 |  | 1.86 |  |
| ABCD | Cambium Learning Group | 1.360 | 1.280 | 1.320 | 40,400 | 0.020 |  | 1.49 |  |
| ABCO | The Advisory Board Company | 50.51 | 49.72 | 50.38 | 107,200 | 0.19 |  | 0.38 |  |
| ABFS | Arkansas Best Corp. | 17.70 | 17.30 | 17.67 | 403,300 | 0.04 |  | 0.23 |  |
| ABIO | Arca Biopharma | 2.700 | 2.500 | 2.660 | 33,200 | 0.100 |  | 3.91 |  |
| ABMD | Abiomed | 22.02 | 21.40 | 21.98 | 339,500 | 0.26 |  | 1.20 |  |
| ABTL | Autobytel Inc. | 5.040 | 4.630 | 4.630 | 33,600 | 0.220 |  | 4.54 |  |
| ACAD | Acadia Pharmaceuticals Inc. | 14.36 | 13.50 | 14.19 | 2,827,800 | 0.40 |  | 2.90 |  |
| ACAS | American Capital | 13.98 | 13.78 | 13.82 | 2,018,000 | 0.19 |  | 1.36 |  |
| ACAT | Arctic Cat Inc. | 47.23 | 46.18 | 47.03 | 57,700 | 0.39 |  | 0.84 |  |
| ACCL | Accelrys | 8.670 | 8.530 | 8.550 | 145,100 | 0.080 |  | 0.93 |  |
| ACET | Aceto Corp. | 11.93 | 11.53 | 11.86 | 97,700 | 0.08 |  | 0.67 |  |
| ACFC | Atlantic Coast Federal Corp. | 5.190 | 5.030 | 5.170 | 4,000 | 0.000 |  | 0.00 |  |
| ACFN | Acorn Energy | 8.880 | 8.420 | 8.830 | 79,900 | 0.160 |  | 1.85 |  |
| ACGL | Arch Capital Group Ltd | 52.33 | 51.84 | 52.28 | 250,600 | 0.20 |  | 0.38 |  |
| ACHC | Acadia Healthcare Company Inc. | 33.20 | 32.11 | 32.90 | 174,300 | 0.16 |  | 0.49 |  |
| ACHN | Achillion Pharmaceuticals | 7.670 | 7.400 | 7.580 | 482,400 | 0.060 |  | 0.79 |  |
| ACIW | Aci Worldwide | 45.79 | 44.59 | 45.55 | 370,500 | 0.21 |  | 0.46 |  |
| ACLS | Axcelis Technologies | 1.600 | 1.460 | 1.590 | 649,600 | 0.090 |  | 6.00 |  |
| ACNB | Acnb Corp. | 16.75 | 16.72 | 16.75 | 700 | 0.00 |  | 0.00 |  |
| ACOR | Acorda Therapeutics | 32.77 | 31.78 | 32.67 | 269,200 | 0.44 |  | 1.37 |  |
| ACPW | Active Power | 4.330 | 4.200 | 4.310 | 17,000 | 0.080 |  | 1.89 |  |
| ACRX | Acelrx Pharmaceuticals | 8.020 | 7.360 | 7.860 | 567,300 | 0.410 |  | 5.50 |  |
| ACST | Acasti Pharma Inc | 2.560 | 2.350 | 2.560 | 50,900 | 0.060 |  | 2.40 |  |
| ACTG | Acacia Research Corp. | 23.76 | 23.21 | 23.53 | 529,000 | 0.01 |  | 0.04 |  |
| ACTS | Actions Semiconductor Co. | 3.050 | 2.950 | 3.000 | 8,200 | 0.020 |  | 0.67 |  |
| ACUR | Acura Pharmaceuticals | 2.420 | 2.300 | 2.370 | 137,900 | 0.010 |  | 0.42 |  |
| ACWI | ACWI Index MSCI Ishares | 52.92 | 52.53 | 52.92 | 661,900 | 0.25 |  | 0.47 |  |
| ACWX | ACWI Ex-US Index MSCI Ishares | 44.00 | 43.72 | 43.99 | 126,000 | 0.36 |  | 0.81 |  |
| ACXM | Acxiom Corp. | 21.60 | 21.18 | 21.46 | 212,700 | 0.00 |  | 0.00 |  |
| ADAT | Authentidate Holding | 1.180 | 1.130 | 1.130 | 14,900 | 0.030 |  | 2.59 |  |
| ADBE | Adobe Systems Incorporated | 42.53 | 41.91 | 42.43 | 3,766,100 | 0.34 |  | 0.79 |  |
| ADEP | Adept Technology | 4.060 | 3.430 | 3.980 | 90,400 | 0.440 |  | 12.43 |  |
| ADES | Ada-Es | 37.00 | 33.22 | 35.37 | 243,900 | 1.55 |  | 4.58 |  |
| ADI | Analog Devices | 45.41 | 44.89 | 45.37 | 1,113,000 | 0.12 |  | 0.26 |  |
| ADNC | Audience Inc. | 14.97 | 14.65 | 14.77 | 114,000 | 0.03 |  | 0.20 |  |
| ADP | Automatic Data Processing | 69.85 | 69.29 | 69.85 | 1,569,800 | 0.08 |  | 0.11 |  |
| ADRA | Asia 50 ADR Index Bldrs | 28.08 | 27.70 | 27.84 | 2,000 | 0.53 |  | 1.87 |  |
| ADRD | Dev Mkts 100 ADR Index Bldrs | 22.72 | 22.62 | 22.72 | 4,000 | 0.24 |  | 1.05 |  |
| ADRE | Emrg Mkts 50 ADR Index Bldrs | 38.30 | 38.05 | 38.26 | 61,700 | 0.12 |  | 0.31 |  |
| ADRU | Europe 100 ADR Index Bldrs | 22.22 | 22.15 | 22.20 | 1,100 | 0.22 |  | 1.00 |  |
| ADSK | Autodesk | 36.47 | 35.74 | 36.08 | 2,767,900 | 0.38 |  | 1.04 |  |
| ADTN | Adtran | 22.38 | 21.88 | 22.28 | 348,400 | 0.10 |  | 0.45 |  |
| ADUS | Addus Homecare Corp. | 16.58 | 15.58 | 16.26 | 93,500 | 0.47 |  | 2.98 |  |
| ADVS | Advent Software | 31.69 | 30.89 | 31.61 | 136,700 | 0.11 |  | 0.35 |  |
| AEGN | Aegoin Corp | 23.03 | 22.52 | 22.89 | 103,800 | 0.07 |  | 0.30 |  |
| AEGR | Aegerion Pharmaceuticals | 61.33 | 59.09 | 60.09 | 278,400 | 0.87 |  | 1.43 |  |
| AEHR | Aehr Test Systems | 1.420 | 1.310 | 1.400 | 2,900 | 0.010 |  | 0.72 |  |
| AEIS | Advanced Energy Industries | 18.18 | 17.74 | 18.09 | 290,100 | 0.06 |  | 0.33 |  |
| AEPI | Aep Industries Inc. | 83.88 | 81.35 | 83.53 | 23,200 | 1.57 |  | 1.92 |  |
| AERL | Asia Entertainment & Resources Ltd | 4.490 | 4.270 | 4.370 | 243,000 | 0.100 |  | 2.34 |  |
| AETI | American Electric Technologies | 6.120 | 5.890 | 6.060 | 25,900 | 0.090 |  | 1.51 |  |
| AEY | Addvantage Technologies Group | 2.290 | 2.210 | 2.270 | 37,700 | 0.060 |  | 2.71 |  |
| AEZS | Aeterna Zentaris | 2.040 | 1.980 | 2.020 | 123,400 | 0.010 |  | 0.49 |  |
| AFAM | Almost Family Inc | 19.45 | 19.31 | 19.41 | 14,900 | 0.07 |  | 0.36 |  |
| AFCB | Athens Bancshares Corp. | 17.86 | 17.86 | 17.86 | 100 | 0.13 |  | 0.72 |  |
| AFCE | Afc Enterprises | 33.51 | 32.74 | 33.45 | 61,000 | 0.10 |  | 0.30 |  |
| AFFX | Affymetrix | 3.740 | 3.660 | 3.670 | 354,800 | 0.010 |  | 0.27 |  |
| AFFY | Affymax | 1.480 | 1.330 | 1.390 | 2,021,100 | 0.010 |  | 0.71 |  |
| AFH | Atlas Financial Holdings Inc. | 7.660 | 7.250 | 7.310 | 13,800 | 0.060 |  | 0.81 |  |
| AFOP | Alliance Fiber Optic Products | 20.40 | 19.53 | 19.91 | 117,000 | 0.10 |  | 0.50 |  |
| AFSI | Amtrust Financial Services | 32.70 | 31.79 | 32.50 | 298,200 | 0.26 |  | 0.81 |  |
| AGEN | Agenus Inc. | 4.190 | 4.050 | 4.070 | 104,900 | 0.050 |  | 1.21 |  |
| AGII | Argo Group International Holdings Ltd | 42.82 | 42.13 | 42.64 | 63,500 | 0.07 |  | 0.16 |  |
| AGIIL | Argo Group International Holdin | 25.70 | 25.50 | 25.68 | 11,700 | 0.08 |  | 0.31 |  |
| AGNC | American Capital Agency | 28.19 | 27.44 | 27.72 | 8,018,700 | 0.33 |  | 1.18 |  |
| AGNCP | American Capital | 26.69 | 26.57 | 26.69 | 18,500 | 0.01 |  | 0.04 |  |
| AGYS | Agilysys | 11.33 | 11.20 | 11.30 | 30,000 | 0.04 |  | 0.35 |  |
| AHGP | Alliance Holdings Gp L.P. | 64.89 | 63.64 | 64.60 | 43,300 | 0.11 |  | 0.17 |  |
| AHPI | Allied Healthcare Products | 2.570 | 2.440 | 2.570 | 1,200 | 0.110 |  | 4.47 |  |
| AIMC | Altra Holdings | 29.02 | 28.53 | 28.74 | 92,000 | 0.36 |  | 1.24 |  |
| AINV | Apollo Investment Corp. | 8.680 | 8.470 | 8.580 | 2,002,500 | 0.080 |  | 0.92 |  |
| AIQ | Alliance Healthcare Services | 12.95 | 12.63 | 12.82 | 5,200 | 0.02 |  | 0.16 |  |
| AIRM | Air Methods Corp. | 38.47 | 36.34 | 37.57 | 1,128,200 | 0.47 |  | 1.27 |  |
| AIRT | Air T | 10.15 | 10.15 | 10.15 | 700 | 0.09 |  | 0.89 |  |
| AIXG | Aixtron Se | 16.10 | 15.82 | 16.09 | 158,100 | 0.03 |  | 0.19 |  |
| AKAM | Akamai Technologies | 46.14 | 45.45 | 46.04 | 1,203,000 | 0.31 |  | 0.67 |  |
| AKRX | Akorn | 14.66 | 14.41 | 14.59 | 308,500 | 0.00 |  | 0.00 |  |
| ALCO | Alico | 45.74 | 45.10 | 45.61 | 7,200 | 0.01 |  | 0.02 |  |
| ALCS | Alco Stores Inc | 9.470 | 9.300 | 9.310 | 1,300 | 0.010 |  | 0.11 |  |
| ALGN | Align Technology | 36.99 | 36.15 | 36.70 | 254,900 | 0.28 |  | 0.76 |  |
| ALGT | Allegiant Travel Company | 93.50 | 91.99 | 93.33 | 39,200 | 0.71 |  | 0.77 |  |
| ALIM | Alimera Sciences | 4.480 | 4.400 | 4.440 | 35,300 | 0.010 |  | 0.23 |  |
| ALKS | Alkermes | 34.30 | 32.00 | 32.84 | 2,174,900 | 0.16 |  | 0.48 |  |
| ALLB | Alliance Bank | 13.81 | 13.70 | 13.81 | 1,800 | 0.06 |  | 0.44 |  |
| ALLT | Allot Communications Ltd | 12.35 | 11.91 | 12.15 | 362,500 | 0.07 |  | 0.57 |  |
| ALNY | Alnylam Pharmaceuticals | 29.07 | 28.47 | 28.98 | 395,100 | 0.92 |  | 3.28 |  |
| ALOG | Analogic Corp. | 80.41 | 79.39 | 79.97 | 36,800 | 0.28 |  | 0.35 |  |
| ALOT | Astro-Med | 10.43 | 10.31 | 10.40 | 13,600 | 0.01 |  | 0.10 |  |
| ALSK | Alaska Communications Systems | 1.860 | 1.820 | 1.830 | 118,900 | 0.020 |  | 1.08 |  |
| ALTE | Alterra Capital Holdings Ltd | 32.81 | 32.17 | 32.55 | 2,375,100 | 0.35 |  | 1.09 |  |
| ALTI | Altair Nanotechnologies Inc. | 2.460 | 2.400 | 2.400 | 1,600 | 0.060 |  | 2.44 |  |
| ALTR | Altera Corp. | 32.94 | 32.34 | 32.94 | 1,825,800 | 0.23 |  | 0.70 |  |
| ALVR | Alvarion Ltd | 2.570 | 2.510 | 2.560 | 3,400 | 0.050 |  | 1.99 |  |
| ALXA | Alexza Pharmaceuticals | 4.650 | 4.510 | 4.590 | 274,800 | 0.080 |  | 1.77 |  |
| ALXN | Alexion Pharmaceuticals | 99.71 | 98.04 | 99.17 | 684,900 | 0.71 |  | 0.71 |  |
| AMAG | Amag Pharmaceuticals | 22.35 | 21.76 | 22.25 | 77,700 | 0.31 |  | 1.41 |  |
| AMAP | Autonavi Holdings | 11.49 | 11.28 | 11.47 | 91,000 | 0.07 |  | 0.61 |  |
| AMAT | Applied Materials | 14.60 | 14.46 | 14.50 | 10,009,100 | 0.10 |  | 0.68 |  |
| AMBA | Ambarella Inc. | 16.36 | 15.30 | 15.49 | 968,300 | 0.70 |  | 4.32 |  |
| AMBC | Ambac Financial Group Inc. | 25.65 | 24.50 | 24.75 | 599,600 | 0.59 |  | 2.33 |  |
| AMBCW | Ambac Financial Group Inc. | 13.39 | 12.85 | 13.19 | 107,700 | 0.15 |  | 1.12 |  |
| AMBI | Ambit Biosciences Corporation | 7.190 | 7.000 | 7.090 | 29,600 | 0.080 |  | 1.12 |  |
| AMBT | Ambient Corp | 1.960 | 1.810 | 1.810 | 9,700 | 0.040 |  | 2.16 |  |
| AMCC | Applied Micro Circuits Corp. | 7.660 | 7.540 | 7.630 | 142,300 | 0.020 |  | 0.26 |  |
| AMCF | Andatee China Marine Fuel Services | 0.6100 | 0.5800 | 0.6100 | 53,900 | 0.0200 |  | 3.39 |  |
| AMCN | Airmedia Group Inc | 1.890 | 1.860 | 1.890 | 5,000 | 0.000 |  | 0.00 |  |
| AMCX | Amc Networks Inc. | 67.04 | 65.55 | 65.90 | 197,300 | 0.79 |  | 1.18 |  |
| AMED | Amedisys Inc | 12.23 | 11.33 | 12.14 | 455,500 | 0.71 |  | 6.21 |  |
| AMGN | Amgen Inc. | 106.2 | 104.4 | 105.9 | 2,410,900 | 0.3 |  | 0.27 |  |
| AMIC | American Independence | 7.600 | 7.130 | 7.200 | 9,100 | 0.160 |  | 2.17 |  |
| AMKR | Amkor Technology | 4.610 | 4.510 | 4.600 | 496,600 | 0.020 |  | 0.44 |  |
| AMNB | American National Bankshares | 21.68 | 21.02 | 21.53 | 4,500 | 0.45 |  | 2.13 |  |
| AMOT | Allied Motion Technologies | 6.910 | 6.830 | 6.830 | 400 | 0.200 |  | 2.84 |  |
| AMOV | America Movil S.A.B. De C.V. | 19.98 | 19.73 | 19.92 | 2,000 | 0.13 |  | 0.65 |  |
| AMPE | Ampio Pharmaceutical | 5.120 | 5.000 | 5.060 | 138,000 | 0.020 |  | 0.39 |  |
| AMRB | American River Bankshares | 8.250 | 7.970 | 8.110 | 38,400 | 0.210 |  | 2.66 |  |
| AMRI | Albany Molecular Research | 11.22 | 10.81 | 11.15 | 163,900 | 0.10 |  | 0.90 |  |
| AMRN | Amarin Corporation Plc | 6.900 | 6.740 | 6.780 | 2,836,400 | 0.140 |  | 2.02 |  |
| AMRS | Amyris | 2.840 | 2.780 | 2.810 | 105,700 | 0.040 |  | 1.40 |  |
| AMSC | American Superconductor Corp. | 2.750 | 2.600 | 2.680 | 425,300 | 0.000 |  | 0.00 |  |
| AMSF | Amerisafe | 33.11 | 32.37 | 33.10 | 26,500 | 0.17 |  | 0.52 |  |
| AMSG | Amsurg | 36.10 | 35.61 | 35.96 | 113,100 | 0.08 |  | 0.22 |  |
| AMSWA | American Software | 8.320 | 8.100 | 8.280 | 24,100 | 0.050 |  | 0.61 |  |
| AMWD | American Woodmark Corp. | 36.16 | 35.02 | 35.97 | 64,000 | 0.32 |  | 0.90 |  |
| AMZN | Amazon.Com | 261.9 | 258.3 | 261.7 | 1,695,700 | 0.1 |  | 0.02 |  |
| ANAC | Anacor Pharmaceuticals | 5.580 | 5.250 | 5.500 | 278,300 | 0.030 |  | 0.55 |  |
| ANAD | Anadigics | 2.070 | 1.970 | 2.050 | 515,400 | 0.050 |  | 2.50 |  |
| ANAT | American National Insurance | 98.81 | 98.53 | 98.70 | 1,200 | 0.69 |  | 0.69 |  |
| ANCB | Anchor Bancorp | 19.00 | 15.17 | 19.00 | 4,000 | 1.70 |  | 9.83 |  |
| ANCI | American Caresource Holdings | 1.900 | 1.760 | 1.900 | 5,600 | 0.140 |  | 7.95 |  |
| ANCX | Access National Corp. | 13.20 | 12.13 | 13.02 | 45,400 | 0.47 |  | 3.75 |  |
| ANDA | Andina Acquisition Corporation | 9.990 | 9.920 | 9.990 | 600 | 0.070 |  | 0.71 |  |
| ANDAU | Andina Acquisition Corporation | 10.08 | 10.08 | 10.08 | 2,900 | 0.04 |  | 0.40 |  |
| ANDAW | Andina Acquisition Corporation | 0.2000 | 0.2000 | 0.2000 | 17,800 | 0.0000 |  | 0.00 |  |
| ANDE | The Andersons | 53.78 | 52.99 | 53.40 | 53,600 | 0.24 |  | 0.45 |  |
| ANEN | Anaren | 23.94 | 23.20 | 23.78 | 9,600 | 0.05 |  | 0.21 |  |
| ANGI | Angie's List Inc. | 23.62 | 23.07 | 23.46 | 307,100 | 0.24 |  | 1.01 |  |
| ANGO | Angiodynamics | 10.75 | 10.54 | 10.71 | 66,200 | 0.04 |  | 0.37 |  |
| ANIK | Anika Therapeutics Inc. | 14.20 | 14.00 | 14.18 | 26,700 | 0.15 |  | 1.07 |  |
| ANLY | Analysts International Corp. | 4.270 | 3.820 | 3.880 | 19,400 | 0.060 |  | 1.52 |  |
| ANSS | Ansys | 74.67 | 72.44 | 73.85 | 403,500 | 0.41 |  | 0.56 |  |
| ANTH | Anthera Pharmaceuticals | 0.6200 | 0.5800 | 0.6000 | 626,500 | 0.0100 |  | 1.64 |  |
| ANTP | Phazar Corp | 1.240 | 1.240 | 1.240 | 1,100 | 0.020 |  | 1.59 |  |
| AOSL | Alpha And Omega Semiconductor | 7.540 | 7.390 | 7.420 | 93,200 | 0.100 |  | 1.33 |  |
| APAGF | Apco Oil And Gas International | 11.88 | 11.06 | 11.64 | 12,200 | 0.42 |  | 3.74 |  |
| APEI | American Public Education | 38.86 | 37.91 | 38.69 | 71,500 | 0.28 |  | 0.73 |  |
| APFC | American Pacific Corp. | 27.99 | 27.11 | 27.67 | 29,600 | 0.08 |  | 0.29 |  |
| APOG | Apogee Enterprises | 27.33 | 26.46 | 27.23 | 109,300 | 0.03 |  | 0.11 |  |
| APOL | Apollo Group | 21.00 | 20.38 | 20.99 | 1,287,900 | 0.14 |  | 0.67 |  |
| APPY | Aspenbio Pharma | 1.320 | 1.270 | 1.300 | 11,386,300 | 0.060 |  | 4.41 |  |
| APRI | Apricus Biosciences Inc | 2.700 | 2.560 | 2.580 | 1,544,000 | 0.070 |  | 2.64 |  |
| APSA | Alto Palermo S.A. | 16.25 | 15.41 | 16.19 | 3,100 | 0.16 |  | 0.98 |  |
| APWC | Asia Pac Wire &Cable | 4.060 | 4.000 | 4.040 | 8,600 | 0.010 |  | 0.25 |  |
| AQU | Aquasition Corp. | 9.870 | 9.840 | 9.870 | 2,600 | 0.090 |  | 0.92 |  |
| AQUUU | Aquasition Corp. | 10.14 | 10.06 | 10.06 | 2,400 | 0.04 |  | 0.40 |  |
| ARAY | Accuray Incorporated | 5.250 | 5.110 | 5.190 | 692,100 | 0.100 |  | 1.89 |  |
| ARCC | Ares Capital Corp. | 17.93 | 17.67 | 17.90 | 1,627,800 | 0.11 |  | 0.62 |  |
| ARCI | Appliance Recycling Centers | 2.050 | 1.950 | 2.040 | 16,300 | 0.010 |  | 0.49 |  |
| ARCP | American Realty Capital Propert | 16.63 | 16.26 | 16.54 | 2,058,000 | 0.09 |  | 0.55 |  |
| ARCW | Arc Wireless Solutions | 5.000 | 5.000 | 5.000 | 200 | 0.060 |  | 1.21 |  |
| ARDNA | Arden Group | 108.0 | 104.2 | 105.2 | 1,100 | 1.8 |  | 1.69 |  |
| AREX | Approach Resources Inc. | 26.39 | 25.60 | 26.35 | 412,800 | 0.02 |  | 0.08 |  |
| ARIA | Ariad Pharmaceuticals | 19.75 | 19.09 | 19.57 | 2,651,900 | 0.13 |  | 0.67 |  |
| ARII | American Railcar Industries | 33.82 | 32.97 | 33.29 | 193,100 | 0.28 |  | 0.83 |  |
| ARKR | Ark Restaurants | 21.55 | 21.24 | 21.55 | 12,000 | 0.10 |  | 0.47 |  |
| ARLP | Alliance Resource Partners L.P. | 76.22 | 73.75 | 76.14 | 61,600 | 0.61 |  | 0.81 |  |
| ARMH | Arm Holdings Plc | 45.13 | 44.46 | 45.10 | 1,638,700 | 0.27 |  | 0.60 |  |
| ARNA | Arena Pharmaceuticals | 8.360 | 8.010 | 8.300 | 6,430,300 | 0.240 |  | 2.98 |  |
| AROW | Arrow Financial Corp. | 24.87 | 24.45 | 24.87 | 5,400 | 0.22 |  | 0.89 |  |
| ARQL | Arqule | 2.770 | 2.700 | 2.730 | 129,700 | 0.020 |  | 0.73 |  |
| ARRS | Arris Group Inc | 15.57 | 14.97 | 15.54 | 1,673,100 | 0.44 |  | 2.91 |  |
| ARRY | Array Biopharma Inc. | 5.880 | 5.610 | 5.850 | 547,600 | 0.190 |  | 3.36 |  |
| ARTC | Arthrocare Corp. | 33.71 | 33.17 | 33.70 | 89,600 | 0.06 |  | 0.18 |  |
| ARTNA | Artesian Resources Corp. | 22.83 | 22.25 | 22.61 | 13,500 | 0.20 |  | 0.89 |  |
| ARTW | Art'S-Way Manufacturing Co. | 7.600 | 7.500 | 7.550 | 4,900 | 0.100 |  | 1.31 |  |
| ARTX | Arotech Corp. | 1.200 | 1.120 | 1.160 | 9,200 | 0.040 |  | 3.33 |  |
| ARUN | Aruba Networks | 13.30 | 13.07 | 13.30 | 4,538,400 | 0.04 |  | 0.30 |  |
| ARWR | Arrowhead Research Corp. | 2.190 | 2.150 | 2.180 | 40,700 | 0.030 |  | 1.40 |  |
| ASBB | Asb Bancorp Inc. | 16.49 | 16.35 | 16.36 | 2,400 | 0.01 |  | 0.06 |  |
| ASBC | Associated Banc-Corp | 15.34 | 15.14 | 15.29 | 687,500 | 0.03 |  | 0.20 |  |
| 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 | 26.43 | 26.38 | 26.41 | 117,600 | 0.02 |  | 0.08 |  |
| ASCMA | Ascent Media Corp. | 72.01 | 70.49 | 71.94 | 25,600 | 0.45 |  | 0.63 |  |
| ASDR | Velocityshares Emerging Asia Dr | 53.28 | 53.28 | 53.28 | 100 | 0.13 |  | 0.24 |  |
| ASEI | American Science And Engineering | 60.29 | 59.03 | 59.63 | 18,900 | 0.17 |  | 0.28 |  |
| ASFI | Asta Funding | 9.020 | 8.810 | 8.830 | 25,400 | 0.130 |  | 1.45 |  |
| ASIA | Asiainfo-Linkage | 11.58 | 11.49 | 11.50 | 1,397,900 | 0.05 |  | 0.43 |  |
| ASMI | Asm International N.V. | 33.83 | 33.71 | 33.83 | 1,300 | 0.41 |  | 1.20 |  |
| ASML | Asml Holding N.V. | 81.69 | 80.04 | 81.30 | 2,015,200 | 1.24 |  | 1.55 |  |
| ASNA | Ascena Retail Group | 20.07 | 19.78 | 19.88 | 550,000 | 0.39 |  | 1.92 |  |
| ASPS | Altisource Portfolio Solutions S.A. | 92.59 | 91.25 | 91.67 | 88,600 | 1.16 |  | 1.25 |  |
| ASRV | Ameriserv Financial Inc. | 3.050 | 2.990 | 3.000 | 9,000 | 0.050 |  | 1.64 |  |
| ASRVP | Ameriserv Financial Inc. | 26.70 | 26.70 | 26.70 | 100 | 0.41 |  | 1.56 |  |
| ASTC | Astrotech Corp. | 0.8400 | 0.7900 | 0.8400 | 100,900 | 0.0400 |  | 5.00 |  |
| ASTE | Astec Industries | 34.61 | 33.64 | 34.57 | 39,500 | 0.14 |  | 0.40 |  |
| ASTI | Ascent Solar Technologies | 0.9000 | 0.8200 | 0.8800 | 787,400 | 0.0400 |  | 4.76 |  |
| ASTM | Aastrom Biosciences | 0.5700 | 0.5500 | 0.5500 | 164,700 | 0.0100 |  | 1.79 |  |
| ASTX | Astex Pharmaceuticals Inc | 5.450 | 5.050 | 5.360 | 640,900 | 0.240 |  | 4.69 |  |
| ASUR | Asure Software Inc | 5.950 | 5.790 | 5.910 | 22,500 | 0.060 |  | 1.03 |  |
| ASYS | Amtech Systems | 4.700 | 4.460 | 4.700 | 37,600 | 0.040 |  | 0.86 |  |
| ATAI | Ata Inc. | 4.800 | 4.530 | 4.550 | 9,600 | 0.250 |  | 5.81 |  |
| ATAX | America First Tax Exempt L.P. | 7.000 | 6.860 | 6.970 | 209,000 | 0.110 |  | 1.60 |  |
| ATEA | Astea International | 2.400 | 2.270 | 2.400 | 6,600 | 0.000 |  | 0.00 |  |
| ATEC | Alphatec Holdings | 1.950 | 1.900 | 1.950 | 31,100 | 0.010 |  | 0.52 |  |
| ATHN | Athenahealth | 86.39 | 83.79 | 85.82 | 223,500 | 0.58 |  | 0.68 |  |
| ATHX | Athersys | 1.810 | 1.710 | 1.740 | 591,000 | 0.070 |  | 3.87 |  |
| ATLC | Atlanticus Holdings Corp. | 3.900 | 3.760 | 3.900 | 9,600 | 0.040 |  | 1.04 |  |
| ATLO | Ames National Corp. | 20.51 | 20.20 | 20.36 | 5,100 | 0.18 |  | 0.89 |  |
| ATMI | Atmi Inc. | 23.42 | 23.10 | 23.36 | 34,400 | 0.00 |  | 0.00 |  |
| ATML | Atmel Corp. | 7.490 | 7.290 | 7.380 | 3,641,300 | 0.110 |  | 1.47 |  |
| ATNI | Atlantic Tele-Network | 50.50 | 49.64 | 50.49 | 24,800 | 0.05 |  | 0.10 |  |
| ATNY | Api Technologies | 2.710 | 2.650 | 2.710 | 13,100 | 0.050 |  | 1.88 |  |
| ATOS | Atossa Genetics Inc. | 5.270 | 5.090 | 5.130 | 48,000 | 0.000 |  | 0.00 |  |
| ATRC | Atricure | 9.450 | 9.200 | 9.280 | 16,100 | 0.020 |  | 0.22 |  |
| ATRI | Atrion Corp. | 214.5 | 210.8 | 214.1 | 1,800 | 2.7 |  | 1.28 |  |
| ATRM | Aetrium Inc. | 0.6900 | 0.6000 | 0.6500 | 5,400 | 0.0000 |  | 0.00 |  |
| ATRO | Astronics Corp. | 34.96 | 34.02 | 34.95 | 33,700 | 0.32 |  | 0.92 |  |
| ATRS | Antares Pharma | 4.120 | 4.000 | 4.110 | 664,400 | 0.060 |  | 1.48 |  |
| ATSG | Air Transport Services Group Inc | 6.050 | 5.850 | 5.940 | 54,200 | 0.120 |  | 1.98 |  |
| ATTU | Attunity Ltd | 5.800 | 5.630 | 5.700 | 6,200 | 0.100 |  | 1.72 |  |
| ATVI | Activision Blizzard Inc | 15.63 | 15.30 | 15.61 | 4,414,100 | 0.07 |  | 0.45 |  |
| ATX | Cross [A.T.] Company | 14.08 | 13.77 | 14.02 | 2,800 | 0.02 |  | 0.14 |  |
| AUBN | Auburn National Bancorporation | 21.84 | 21.81 | 21.84 | 200 | 0.28 |  | 1.30 |  |
| AUDC | Audiocodes Ltd | 4.030 | 3.980 | 4.030 | 24,300 | 0.000 |  | 0.00 |  |
| AUXL | Auxilium Pharmaceuticals | 15.70 | 15.05 | 15.18 | 1,124,500 | 0.08 |  | 0.52 |  |
| AVAV | Aerovironment | 20.43 | 20.00 | 20.42 | 90,000 | 0.32 |  | 1.59 |  |
| AVEO | Aveo Pharmaceuticals | 2.710 | 2.290 | 2.710 | 3,461,500 | 0.010 |  | 0.37 |  |
| AVGO | Avago Technologies | 34.10 | 33.67 | 34.10 | 1,511,700 | 0.13 |  | 0.38 |  |
| AVHI | Av Homes Inc | 12.92 | 12.74 | 12.79 | 9,800 | 0.06 |  | 0.47 |  |
| AVID | Avid Technology | 6.840 | 6.650 | 6.810 | 21,600 | 0.100 |  | 1.49 |  |
| AVNR | Avanir Pharmaceuticals Inc | 3.430 | 3.320 | 3.410 | 1,105,800 | 0.010 |  | 0.29 |  |
| AVNW | Aviat Networks | 2.690 | 2.600 | 2.660 | 101,600 | 0.030 |  | 1.12 |  |
| AWAY | Homeaway Inc. | 30.84 | 30.00 | 30.36 | 485,900 | 0.11 |  | 0.36 |  |
| AWRE | Aware | 5.250 | 5.090 | 5.120 | 83,200 | 0.070 |  | 1.39 |  |
| AXAS | Abraxas Petroleum Corp. | 2.490 | 2.380 | 2.450 | 384,900 | 0.020 |  | 0.81 |  |
| AXDX | Accelerate Diagnostics Inc. | 8.700 | 8.490 | 8.670 | 43,000 | 0.070 |  | 0.81 |  |
| 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 | 60.31 | 59.00 | 59.98 | 1,300 | 0.98 |  | 1.66 |  |
| AXTI | Axt Inc | 2.880 | 2.810 | 2.850 | 75,900 | 0.020 |  | 0.70 |  |
| AZPN | Aspen Technology | 30.31 | 29.77 | 30.18 | 277,500 | 0.07 |  | 0.23 |  |