| Code | Name | High | Low | Close | Volume | Change |
| AACC | Asset Acceptance Capital Corp. | 5.590 | 5.320 | 5.520 | 37,899 | 0.170 |  | 3.18 |
| AAME | Atlantic American Corporation | 1.340 | 1.280 | 1.280 | 4,400 | 0.020 |  | 1.59 |
| AANB | Abigail Adams National Bancorp Inc. | 2.970 | 2.920 | 2.920 | 922 | 0.050 |  | 1.74 |
| AAON | AAON Inc. | 19.90 | 19.18 | 19.59 | 59,089 | 0.08 |  | 0.41 |
| AAPL | Apple Inc. | 200.4 | 197.8 | 199.9 | 14,521,345 | 0.6 |  | 0.29 |
| AATI | Advanced Analogic Technologies Inc. | 3.340 | 3.110 | 3.160 | 319,237 | 0.080 |  | 2.47 |
| AAWW | Atlas Air Worldwide Holdings | 30.03 | 29.50 | 29.83 | 341,262 | 0.21 |  | 0.70 |
| AAXJ | iShares Trust | 55.30 | 54.51 | 55.20 | 215,663 | 0.24 |  | 0.44 |
| AAZST | TEST AAZST | 7.3800 | 0.0100 | 0.0100 | 1,400 | 2.5600 |  | 99.61 |
| ABAT | Advanced Battery Technologies Inc. | 3.430 | 3.300 | 3.410 | 545,006 | 0.060 |  | 1.79 |
| ABAX | ABAXIS Inc. | 22.76 | 22.35 | 22.56 | 136,869 | 0.02 |  | 0.09 |
| ABBC | Abington Bancorp Inc. | 7.000 | 6.780 | 6.800 | 40,502 | 0.060 |  | 0.87 |
| ABCB | Ameris Bancorp | 6.280 | 6.000 | 6.250 | 58,174 | 0.100 |  | 1.63 |
| ABCO | Advisory Board Company (The) | 25.32 | 24.50 | 24.78 | 78,151 | 0.42 |  | 1.67 |
| ABCW | Anchor BanCorp Wisconsin Inc. | 0.7800 | 0.6000 | 0.6200 | 600,930 | 0.1300 |  | 17.33 |
| ABFS | Arkansas Best Corporation | 24.97 | 24.31 | 24.87 | 342,330 | 0.31 |  | 1.26 |
| ABII | Abraxis Bioscience Inc. | 33.90 | 33.42 | 33.85 | 20,737 | 0.37 |  | 1.11 |
| ABIO | ARCA BIOPHARMA INC. | 2.400 | 2.210 | 2.250 | 40,369 | 0.160 |  | 6.64 |
| ABMC | American Bio Medica Corp. | 0.2400 | 0.1800 | 0.1800 | 286,878 | 0.0400 |  | 18.18 |
| ABMD | ABIOMED Inc. | 8.690 | 8.110 | 8.140 | 220,960 | 0.410 |  | 4.80 |
| ABTL | Autobytel Inc. | 0.9200 | 0.8500 | 0.9000 | 115,473 | 0.0500 |  | 5.88 |
| ABVA | Alliance Bankshares Corporation | 2.710 | 2.220 | 2.220 | 200 | 0.050 |  | 2.30 |
| ACAD | ACADIA Pharmaceuticals Inc. | 1.450 | 1.330 | 1.330 | 250,683 | 0.090 |  | 6.34 |
| ACAP | American Physicians Capital Inc. | 27.64 | 27.32 | 27.50 | 42,647 | 0.06 |  | 0.22 |
| ACAS | American Capital Ltd. | 3.070 | 2.940 | 3.060 | 3,463,272 | 0.080 |  | 2.68 |
| ACAT | Arctic Cat Inc. | 7.040 | 6.750 | 6.750 | 12,117 | 0.080 |  | 1.17 |
| ACCL | Accelrys Inc. | 5.270 | 5.050 | 5.090 | 83,096 | 0.010 |  | 0.20 |
| ACET | Aceto Corporation | 5.240 | 5.150 | 5.240 | 100,207 | 0.050 |  | 0.96 |
| ACFC | Atlantic Coast Federal Corporation | 1.380 | 1.350 | 1.350 | 1,100 | 0.000 |  | 0.00 |
| ACFN | Acorn Energy Inc. | 7.500 | 7.100 | 7.370 | 55,764 | 0.140 |  | 1.94 |
| ACGL | Arch Capital Group Ltd. | 69.93 | 68.89 | 69.31 | 718,285 | 1.37 |  | 1.94 |
| ACGY | Acergy S.A. | 13.87 | 13.57 | 13.81 | 146,879 | 0.27 |  | 1.92 |
| ACHN | Achillion Pharmaceuticals Inc. | 1.990 | 1.920 | 1.920 | 14,425 | 0.020 |  | 1.05 |
| ACIW | ACI Worldwide Inc. | 17.32 | 16.69 | 17.10 | 109,767 | 0.06 |  | 0.35 |
| ACLI | American Commercial Lines Inc | 19.51 | 18.26 | 18.51 | 175,638 | 0.90 |  | 4.64 |
| ACLS | Axcelis Technologies Inc. | 1.220 | 1.160 | 1.160 | 477,026 | 0.070 |  | 5.69 |
| ACMR | A.C. Moore Arts & Crafts Inc. | 3.400 | 3.300 | 3.360 | 22,289 | 0.020 |  | 0.60 |
| ACOM | ANCESTRY.COM INC.- YAHOO! FINAN | 13.53 | 13.05 | 13.41 | 290,300 | 0.09 |  | 0.67 |
| ACOR | Acorda Therapeutics Inc. | 24.09 | 23.13 | 23.90 | 619,604 | 0.25 |  | 1.06 |
| ACPW | Active Power Inc. | 1.080 | 1.030 | 1.060 | 57,668 | 0.010 |  | 0.93 |
| ACTG | Acacia Research Corporation | 7.650 | 7.050 | 7.380 | 705,227 | 0.120 |  | 1.60 |
| ACTI | ActivIdentity Corporation | 2.280 | 2.150 | 2.240 | 153,869 | 0.020 |  | 0.90 |
| ACTL | Actel Corporation | 11.97 | 11.59 | 11.69 | 55,035 | 0.13 |  | 1.10 |
| ACTS | Actions Semiconductor Co. Ltd. | 2.410 | 2.350 | 2.400 | 74,818 | 0.010 |  | 0.42 |
| ACTU | Actuate Corporation | 4.240 | 4.090 | 4.140 | 150,138 | 0.020 |  | 0.49 |
| ACUR | Acura Pharmaceuticals Inc. | 4.210 | 4.080 | 4.160 | 12,950 | 0.060 |  | 1.46 |
| ACWI | iShares MSCI ACWI Index Fund | 41.94 | 41.63 | 41.88 | 149,172 | 0.14 |  | 0.33 |
| ACWX | iShares MSCI ACWI ex US Index Fund | 40.72 | 40.27 | 40.69 | 120,038 | 0.24 |  | 0.59 |
| ACXM | Acxiom Corporation | 12.00 | 11.74 | 11.99 | 352,937 | 0.02 |  | 0.17 |
| ADAM | A.D.A.M. Inc. | 4.080 | 3.950 | 3.950 | 15,935 | 0.280 |  | 6.62 |
| ADAT | Authentidate Holding Corp. | 1.330 | 1.220 | 1.330 | 58,518 | 0.090 |  | 7.26 |
| ADBE | Adobe Systems Incorporated | 36.07 | 35.49 | 35.81 | 3,344,414 | 0.30 |  | 0.83 |
| ADCT | ADC Telecommunications Inc. | 5.980 | 5.350 | 5.910 | 18,249,259 | 0.730 |  | 10.99 |
| ADEP | Adept Technology Inc. | 2.690 | 2.570 | 2.690 | 3,630 | 0.120 |  | 4.67 |
| ADES | ADA-ES Inc. | 2.600 | 2.400 | 2.580 | 121,063 | 0.210 |  | 8.86 |
| ADGF | Adams Golf Inc. | 3.000 | 2.950 | 2.960 | 9,243 | 0.040 |  | 1.33 |
| ADLR | Adolor Corporation | 1.540 | 1.490 | 1.510 | 110,538 | 0.010 |  | 0.67 |
| ADP | AUTOMATIC DATA PROCS | 43.64 | 43.11 | 43.45 | 2,389,114 | 0.01 |  | 0.02 |
| ADPI | American Dental Partners Inc. | 11.59 | 11.29 | 11.51 | 231,713 | 0.17 |  | 1.50 |
| ADPT | Adaptec Inc. | 3.230 | 3.100 | 3.160 | 521,403 | 0.030 |  | 0.94 |
| ADRA | BLDRS Asia 50 ADR Index Fund | 24.72 | 24.59 | 24.72 | 8,621 | 0.10 |  | 0.41 |
| ADRD | BLDRS Developed Markets 100 ADR Index | 21.57 | 21.31 | 21.53 | 6,976 | 0.21 |  | 0.97 |
| ADRE | BLDRS Emerging Markets 50 ADR Index Fund | 44.15 | 43.63 | 44.01 | 145,235 | 0.17 |  | 0.38 |
| ADRU | BLDRS Europe 100 ADR Index Fund | 21.75 | 21.60 | 21.75 | 1,458 | 0.18 |  | 0.82 |
| ADSK | Autodesk Inc. | 24.05 | 23.48 | 23.81 | 4,633,251 | 0.24 |  | 1.00 |
| ADTN | ADTRAN Inc. | 22.48 | 21.52 | 21.79 | 2,641,313 | 0.90 |  | 3.97 |
| ADUS | ADDUS HOMECARE CORPORATION- YAHO | 8.250 | 7.980 | 8.000 | 50,153 | 0.060 |  | 0.74 |
| ADVNA | ADVANTA Corp. | 0.0900 | 0.0600 | 0.0700 | 241,317 | 0.0100 |  | 12.50 |
| ADVNB | ADVANTA Corp. | 0.0600 | 0.0400 | 0.0500 | 1,631,274 | 0.0000 |  | 0.00 |
| ADVS | Advent Software Inc. | 39.20 | 38.65 | 39.08 | 83,244 | 0.03 |  | 0.08 |
| AEHR | Aehr Test Systems | 1.580 | 1.470 | 1.500 | 7,195 | 0.040 |  | 2.60 |
| AEIS | Advanced Energy Industries Inc. | 11.86 | 11.39 | 11.47 | 176,359 | 0.30 |  | 2.55 |
| AEPI | AEP Industries Inc. | 38.44 | 37.87 | 38.08 | 23,993 | 0.63 |  | 1.63 |
| AERG | Applied Energetics Inc | 0.3700 | 0.3600 | 0.3600 | 172,707 | 0.0100 |  | 2.70 |
| AERT | Advanced Environmental Recycling | 0.3900 | 0.3700 | 0.3800 | 22,180 | 0.0100 |  | 2.70 |
| AETI | American Electric Technologies Inc. | 2.400 | 2.300 | 2.330 | 1,750 | 0.070 |  | 2.92 |
| AEY | ADDvantage Technologies Group Inc. | 2.200 | 2.030 | 2.090 | 10,050 | 0.090 |  | 4.13 |
| AEZS | AEterna Zentaris Inc. | 1.0000 | 0.9700 | 0.9900 | 44,805 | 0.0100 |  | 1.02 |
| AFAM | Almost Family Inc | 36.21 | 35.09 | 36.06 | 149,035 | 0.17 |  | 0.47 |
| AFCE | AFC Enterprises Inc. | 8.180 | 7.900 | 8.040 | 60,760 | 0.040 |  | 0.50 |
| AFFM | Affirmative Insurance Holdings Inc. | 4.150 | 4.070 | 4.100 | 4,100 | 0.060 |  | 1.49 |
| AFFX | Affymetrix Inc. | 4.940 | 4.640 | 4.840 | 1,060,818 | 0.040 |  | 0.83 |
| AFFY | Affymax Inc. | 20.11 | 19.46 | 20.07 | 338,736 | 0.41 |  | 2.09 |
| AFOP | Alliance Fiber Optic Products Inc. | 1.120 | 1.080 | 1.120 | 61,260 | 0.000 |  | 0.00 |
| AFSI | AmTrust Financial Services Inc. | 12.10 | 11.67 | 12.07 | 127,560 | 0.26 |  | 2.20 |
| AGAM | Acres Gaming | 12.30 | 11.95 | 12.17 | 192,754 | 0.18 |  | 1.46 |
| AGEN | Antigenics Inc. | 0.9400 | 0.8800 | 0.9000 | 965,863 | 0.0600 |  | 6.25 |
| AGII | Argo Group International Holdings Ltd. | 30.92 | 30.46 | 30.90 | 87,630 | 0.25 |  | 0.82 |
| AGNC | American Capital Agency Corp. | 26.38 | 25.85 | 26.17 | 230,584 | 0.21 |  | 0.80 |
| AGYS | Agilysys Inc. | 8.870 | 7.950 | 8.450 | 171,192 | 0.320 |  | 3.94 |
| AHCI | Allied HealthCare International Inc. | 2.810 | 2.690 | 2.780 | 60,965 | 0.050 |  | 1.83 |
| AHGP | Alliance Holdings GP L.P. | 23.64 | 23.00 | 23.32 | 37,382 | 0.24 |  | 1.02 |
| AHII | Animal Health International Inc. | 2.430 | 2.280 | 2.280 | 21,470 | 0.200 |  | 8.06 |
| AHPI | Allied Healthcare Products Inc. | 5.290 | 5.000 | 5.290 | 347 | 0.300 |  | 6.01 |
| AIMC | Altra Holdings Inc. | 11.85 | 11.60 | 11.73 | 103,513 | 0.05 |  | 0.43 |
| AINV | Apollo Investment Corporation | 9.520 | 9.270 | 9.330 | 1,226,935 | 0.190 |  | 2.00 |
| AIPC | AMER ITAL PASTA | 29.26 | 28.49 | 29.26 | 197,286 | 0.43 |  | 1.49 |
| AIRM | Air Methods Corporation | 34.15 | 33.66 | 33.85 | 43,339 | 0.27 |  | 0.79 |
| AIRT | Air T Inc. | 11.110 | 9.580 | 9.670 | 659,995 | 1.090 |  | 10.13 |
| AIRV | Airvana Inc. | 6.300 | 6.190 | 6.240 | 88,921 | 0.010 |  | 0.16 |
| AIXG | Aixtron Aktiengesellschaft | 32.93 | 32.16 | 32.30 | 187,069 | 0.01 |  | 0.03 |
| AKAM | Akamai Technologies Inc. | 24.32 | 23.78 | 23.94 | 2,885,408 | 0.31 |  | 1.28 |
| AKNS | Akeena Solar Inc. | 1.100 | 1.000 | 1.070 | 118,224 | 0.030 |  | 2.88 |
| AKRX | Akorn Inc. | 1.640 | 1.580 | 1.610 | 207,544 | 0.010 |  | 0.63 |
| ALAN | Alanco Technologies Inc. | 0.3400 | 0.3000 | 0.3300 | 138,656 | 0.0300 |  | 10.00 |
| ALCO | Alico Inc. | 26.82 | 25.49 | 26.53 | 22,029 | 0.54 |  | 2.08 |
| ALDA | Aldila Inc. | 3.730 | 3.600 | 3.730 | 13,309 | 0.180 |  | 5.07 |
| ALGN | Align Technology Inc. | 15.98 | 15.52 | 15.54 | 417,993 | 0.31 |  | 1.96 |
| ALGT | Allegiant Travel Company | 40.86 | 40.02 | 40.64 | 125,905 | 0.02 |  | 0.05 |
| ALKS | Alkermes Inc. | 8.990 | 8.630 | 8.660 | 514,199 | 0.250 |  | 2.81 |
| ALLB | Alliance Bancorp Inc. of Pennsylvania | 8.600 | 8.600 | 8.600 | 800 | 0.020 |  | 0.23 |
| ALLI | Allion Healthcare Inc. | 6.520 | 6.500 | 6.520 | 101,256 | 0.010 |  | 0.15 |
| ALLT | Allot Communications Ltd. | 3.970 | 3.860 | 3.960 | 8,950 | 0.040 |  | 1.02 |
| ALNC | Alliance Financial Corporation | 30.00 | 28.55 | 29.92 | 58,610 | 0.96 |  | 3.31 |
| ALNY | Alnylam Pharmaceuticals Inc. | 17.04 | 16.74 | 16.84 | 137,147 | 0.02 |  | 0.12 |
| ALOG | Analogic Corporation | 39.90 | 38.32 | 39.07 | 32,285 | 0.44 |  | 1.11 |
| ALOT | Astro-Med Inc. | 6.520 | 6.400 | 6.400 | 6,525 | 0.130 |  | 1.99 |
| ALOY | Alloy Inc. | 7.640 | 7.300 | 7.550 | 53,253 | 0.070 |  | 0.94 |
| ALSK | Alaska Communications Systems Group Inc. | 6.900 | 6.710 | 6.780 | 370,650 | 0.040 |  | 0.59 |
| ALTH | Allos Therapeutics Inc. | 6.190 | 6.010 | 6.160 | 1,805,753 | 0.000 |  | 0.00 |
| ALTI | Altair Nanotechnologies Inc. | 0.9500 | 0.9200 | 0.9400 | 178,715 | 0.0100 |  | 1.05 |
| ALTR | Altera Corporation | 20.79 | 20.50 | 20.67 | 5,391,604 | 0.13 |  | 0.63 |
| ALTU | Altus Pharmaceuticals Inc. | 0.1400 | 0.0400 | 0.0900 | 16,325,033 | 0.0400 |  | 80.00 |
| ALVR | Alvarion Ltd. | 3.910 | 3.840 | 3.900 | 126,605 | 0.010 |  | 0.26 |
| ALXA | Alexza Pharmaceuticals Inc. | 2.280 | 2.190 | 2.280 | 30,042 | 0.060 |  | 2.70 |
| ALXN | Alexion Pharmaceuticals Inc. | 44.27 | 43.63 | 43.70 | 429,350 | 0.46 |  | 1.04 |
| AMAC | American Medical Alert Corp. | 6.050 | 5.800 | 6.000 | 26,805 | 0.150 |  | 2.56 |
| AMAG | AMAG Pharmaceuticals Inc. | 40.12 | 39.32 | 39.75 | 483,665 | 0.06 |  | 0.15 |
| AMAT | Applied Materials Inc. | 12.42 | 12.20 | 12.28 | 25,073,751 | 0.20 |  | 1.60 |
| AMCC | Applied Micro Circuits Corporation | 7.560 | 7.360 | 7.510 | 600,268 | 0.060 |  | 0.79 |
| AMCE | American Claims Evaluation Inc. | 0.7100 | 0.6900 | 0.7000 | 9,748 | 0.0600 |  | 7.89 |
| AMCN | AirMedia Group Inc | 7.000 | 6.800 | 6.930 | 282,371 | 0.030 |  | 0.43 |
| AMCS | AMICAS Inc. | 4.020 | 3.910 | 3.990 | 86,984 | 0.080 |  | 2.05 |
| AMED | Amedisys Inc | 37.82 | 36.98 | 37.69 | 480,905 | 0.21 |  | 0.56 |
| AMFI | Amcore Financial Inc. | 0.6500 | 0.5000 | 0.5200 | 360,235 | 0.1300 |  | 20.00 |
| AMGN | Amgen Inc. | 55.79 | 55.12 | 55.38 | 9,492,952 | 0.68 |  | 1.21 |
| AMIC | American Independence Corp. | 5.200 | 4.750 | 4.760 | 14,620 | 0.160 |  | 3.25 |
| AMIE | Ambassadors International Inc. | 0.5200 | 0.4100 | 0.4300 | 74,925 | 0.0500 |  | 10.42 |
| AMIN | American International Industries Inc | 1.400 | 1.200 | 1.200 | 17,932 | 0.100 |  | 7.69 |
| AMKR | Amkor Technology Inc. | 5.870 | 5.600 | 5.740 | 1,634,414 | 0.120 |  | 2.05 |
| AMLN | Amylin Pharmaceuticals Inc. | 12.77 | 12.42 | 12.44 | 1,358,722 | 0.33 |  | 2.58 |
| AMMD | American Medical Systems Holdings Inc. | 17.43 | 17.04 | 17.16 | 374,272 | 0.19 |  | 1.10 |
| AMNB | American National Bankshares Inc. | 21.37 | 20.53 | 21.26 | 9,237 | 0.52 |  | 2.51 |
| AMOT | Allied Motion Technologies Inc. | 2.360 | 2.250 | 2.330 | 2,812 | 0.140 |  | 5.65 |
| AMOV | America Movil S.A.B. de C.V. | 47.40 | 46.86 | 46.95 | 3,125 | 0.40 |  | 0.84 |
| AMPH | American Physicians Service Group Inc. | 23.94 | 23.10 | 23.94 | 25,280 | 0.37 |  | 1.57 |
| AMPL | Ampal-American Israel Corporation | 2.810 | 2.750 | 2.790 | 37,897 | 0.040 |  | 1.41 |
| AMRB | American River Bankshares | 6.950 | 6.750 | 6.900 | 1,277 | 0.050 |  | 0.72 |
| AMRI | Albany Molecular Research Inc. | 8.350 | 8.070 | 8.300 | 134,838 | 0.160 |  | 1.97 |
| AMRN | Amarin Corporation PLC | 1.350 | 1.250 | 1.350 | 2,905 | 0.020 |  | 1.50 |
| AMSC | American Superconductor Corporation | 33.57 | 32.20 | 32.63 | 1,387,424 | 0.39 |  | 1.18 |
| AMSF | AMERISAFE Inc. | 17.48 | 17.11 | 17.33 | 78,282 | 0.04 |  | 0.23 |
| AMSG | Amsurg Corp. | 21.13 | 20.70 | 21.04 | 57,822 | 0.19 |  | 0.91 |
| AMSWA | American Software Inc. | 6.390 | 6.060 | 6.080 | 64,292 | 0.250 |  | 3.95 |
| AMTC | Ameritrans Capital Corporation | 1.400 | 1.390 | 1.400 | 11,940 | 0.150 |  | 12.00 |
| AMTCP | Ameritrans Capital Corporation | 5.750 | 5.750 | 5.750 | 300 | 0.390 |  | 6.35 |
| AMTD | TD Ameritrade Holding Corporation | 21.00 | 20.76 | 20.91 | 2,769,707 | 0.10 |  | 0.48 |
| AMTY | Amerityre Corporation | 0.3500 | 0.3200 | 0.3300 | 37,296 | 0.0000 |  | 0.00 |
| AMWD | American Woodmark Corporation | 19.91 | 19.06 | 19.26 | 33,833 | 0.56 |  | 2.83 |
| AMZN | Amazon.com Inc. | 130.0 | 127.4 | 129.7 | 6,649,397 | 0.7 |  | 0.52 |
| ANAD | ANADIGICS Inc. | 3.150 | 3.010 | 3.050 | 645,335 | 0.050 |  | 1.61 |
| ANAT | American National Insurance Company | 100.77 | 95.76 | 99.31 | 45,019 | 1.70 |  | 1.74 |
| ANCI | AMERICAN CARESOURCE | 2.180 | 2.040 | 2.080 | 101,358 | 0.050 |  | 2.35 |
| ANCX | Access National Corporation | 6.190 | 5.990 | 6.010 | 2,974 | 0.090 |  | 1.48 |
| ANDE | Andersons Inc. (The) | 28.21 | 27.21 | 28.07 | 398,469 | 1.48 |  | 5.57 |
| ANDS | Anadys Pharmaceuticals Inc. | 2.190 | 2.100 | 2.190 | 248,321 | 0.030 |  | 1.39 |
| ANEN | Anaren Inc. | 14.85 | 14.42 | 14.45 | 39,544 | 0.25 |  | 1.70 |
| ANGN | Angeion Corporation | 3.670 | 3.600 | 3.600 | 2,475 | 0.050 |  | 1.37 |
| ANGO | AngioDynamics Inc. | 15.75 | 15.57 | 15.72 | 128,228 | 0.03 |  | 0.19 |
| ANIK | Anika Therapeutics Inc. | 8.120 | 7.900 | 8.030 | 15,720 | 0.080 |  | 0.99 |
| ANLY | Analysts International Corporation | 0.7900 | 0.6500 | 0.7600 | 60,818 | 0.0800 |  | 11.76 |
| ANNB | Annapolis Bancorp Inc. | 3.030 | 3.000 | 3.000 | 450 | 0.000 |  | 0.00 |
| ANPI | Angiotech Pharmaceuticals Inc. | 1.310 | 1.280 | 1.300 | 130,384 | 0.010 |  | 0.78 |
| ANSS | AYS Inc. | 39.96 | 39.51 | 39.81 | 289,949 | 0.04 |  | 0.10 |
| ANSV | Anesiva Inc. | 0.1300 | 0.1200 | 0.1200 | 207,026 | 0.0000 |  | 0.00 |
| ANSW | Answers Corporation | 8.200 | 7.810 | 7.960 | 80,500 | 0.010 |  | 0.13 |
| ANTF | ANTE4 INC | 1.220 | 1.140 | 1.180 | 154,486 | 0.060 |  | 5.36 |
| ANTP | PHAZAR CORP | 3.250 | 3.100 | 3.130 | 1,800 | 0.220 |  | 6.57 |
| AONE | A123 SYSTEMS INC. | 15.20 | 14.69 | 14.70 | 1,054,335 | 0.53 |  | 3.48 |
| APAB | Appalachian Bancshares Inc. (GA) | 0.4500 | 0.3300 | 0.3600 | 115,657 | 0.0300 |  | 7.69 |
| APAC | APAC Customer Services Inc. | 5.670 | 5.420 | 5.520 | 398,011 | 0.010 |  | 0.18 |
| APAGF | APCO Argentina Inc. | 23.68 | 21.91 | 22.92 | 18,113 | 0.10 |  | 0.44 |
| APCVZ | FK HOLDINGS CVR | 0.4100 | 0.3900 | 0.3900 | 58,660 | 0.0100 |  | 2.56 |
| APEI | American Public Education Inc. | 32.61 | 31.95 | 32.14 | 92,473 | 0.24 |  | 0.74 |
| APFC | American Pacific Corporation | 7.450 | 7.130 | 7.400 | 15,067 | 0.260 |  | 3.64 |
| APKT | Acme Packet Inc. | 10.72 | 10.22 | 10.55 | 148,779 | 0.03 |  | 0.28 |
| APOG | Apogee Enterprises Inc. | 14.08 | 13.71 | 14.04 | 123,041 | 0.06 |  | 0.43 |
| APOL | Apollo Group Inc. | 55.69 | 54.89 | 55.10 | 1,895,366 | 0.05 |  | 0.09 |
| APPA | A.P. Pharma Inc. | 0.9400 | 0.9000 | 0.9100 | 4,075 | 0.0200 |  | 2.22 |
| APPY | AspenBio Pharma Inc. | 1.680 | 1.650 | 1.660 | 24,033 | 0.020 |  | 1.19 |
| APSA | Alto Palermo S.A. | 9.230 | 9.220 | 9.220 | 230 | 0.630 |  | 7.33 |
| APSG | Applied Signal Technology Inc. | 20.40 | 20.12 | 20.36 | 47,752 | 0.10 |  | 0.49 |
| APWR | A-Power Energy Generation Systems Ltd. | 13.78 | 13.01 | 13.78 | 825,946 | 0.53 |  | 4.00 |
| ARAY | Accuray Incorporated | 5.610 | 5.360 | 5.540 | 183,345 | 0.130 |  | 2.40 |
| ARBA | Ariba Inc. | 11.25 | 11.07 | 11.13 | 815,240 | 0.19 |  | 1.68 |
| ARBX | Arbinet-thexchange Inc. | 2.260 | 2.140 | 2.180 | 16,840 | 0.030 |  | 1.36 |
| ARCC | Ares Capital Corporation | 11.95 | 11.69 | 11.84 | 1,124,930 | 0.06 |  | 0.51 |
| ARCI | Appliance Recycling Centers of America | 2.320 | 2.250 | 2.320 | 5,249 | 0.120 |  | 5.45 |
| ARCW | Arc Wireless Solutions Inc. | 2.500 | 2.350 | 2.480 | 300 | 0.220 |  | 8.15 |
| ARDNA | Arden Group Inc. | 94.83 | 93.40 | 94.82 | 1,299 | 0.24 |  | 0.25 |
| AREX | Approach Resources Inc. | 7.720 | 7.160 | 7.440 | 24,617 | 0.130 |  | 1.72 |
| ARGN | Amerigon Incorporated | 6.970 | 6.760 | 6.890 | 103,017 | 0.040 |  | 0.58 |
| ARIA | ARIAD Pharmaceuticals Inc. | 2.210 | 2.110 | 2.160 | 1,199,799 | 0.030 |  | 1.37 |
| ARII | American Railcar Industries Inc. | 10.47 | 10.15 | 10.30 | 40,540 | 0.21 |  | 2.00 |
| ARKR | Ark Restaurants Corp. | 14.03 | 13.29 | 13.29 | 3,185 | 0.06 |  | 0.45 |
| ARLP | Alliance Resource Partners L.P. | 39.29 | 38.25 | 38.95 | 59,645 | 0.08 |  | 0.21 |
| ARMH | ARM Holdings plc | 7.620 | 7.430 | 7.570 | 2,517,963 | 0.070 |  | 0.92 |
| ARNA | Arena Pharmaceuticals Inc. | 3.570 | 3.490 | 3.510 | 1,147,259 | 0.030 |  | 0.85 |
| AROW | Arrow Financial Corporation | 25.39 | 24.91 | 25.37 | 20,348 | 0.36 |  | 1.44 |
| ARQL | ArQule Inc. | 3.320 | 3.170 | 3.300 | 144,957 | 0.090 |  | 2.80 |
| ARRS | Arris Group Inc | 10.60 | 9.97 | 10.08 | 1,871,118 | 0.23 |  | 2.23 |
| ARRY | Array BioPharma Inc. | 2.070 | 1.980 | 2.030 | 190,210 | 0.040 |  | 2.01 |
| ARSD | Arabian American Development Company | 2.640 | 2.100 | 2.390 | 107,067 | 0.190 |  | 7.36 |
| ARST | Arc Sight Inc. | 24.73 | 23.60 | 24.42 | 506,649 | 0.06 |  | 0.25 |
| ARTG | Art Technology Group Inc. | 4.160 | 4.050 | 4.100 | 717,974 | 0.010 |  | 0.24 |
| ARTL | The Aristotle Corporation | 5.440 | 5.440 | 5.440 | 10,400 | 0.000 |  | 0.00 |
| ARTLP | The Aristotle Corporation | 6.970 | 6.930 | 6.940 | 16,412 | 0.020 |  | 0.29 |
| ARTNA | Artesian Resources Corporation | 16.69 | 16.42 | 16.60 | 9,690 | 0.20 |  | 1.22 |
| ARTW | Art's-Way Manufacturing Co. Inc. | 4.000 | 3.100 | 3.100 | 300 | 0.000 |  | 0.00 |
| ARTX | Arotech Corporation | 1.660 | 1.630 | 1.630 | 20,101 | 0.060 |  | 3.55 |
| ARUN | Aruba Networks Inc. | 9.390 | 8.620 | 8.940 | 3,414,107 | 0.640 |  | 6.68 |
| ARWR | Arrowhead Research Corporation | 0.6600 | 0.6000 | 0.6500 | 96,808 | 0.0100 |  | 1.52 |
| ARYX | ARYx Therapeutics Inc. | 2.500 | 2.400 | 2.460 | 76,043 | 0.030 |  | 1.23 |
| ASBC | Associated Banc-Corp | 11.47 | 11.24 | 11.27 | 2,786,776 | 0.22 |  | 1.91 |
| ASBI | Ameriana Bancorp | 2.950 | 2.950 | 2.950 | 560 | 0.010 |  | 0.34 |
| ASCA | Ameristar Casinos Inc. | 18.29 | 17.56 | 17.82 | 267,816 | 0.13 |  | 0.72 |
| ASCMA | ASCENT MEDIA CORP | 23.26 | 22.91 | 23.17 | 51,075 | 0.10 |  | 0.43 |
| ASEI | American Science and Engineering Inc. | 70.72 | 69.41 | 69.86 | 84,183 | 0.30 |  | 0.43 |
| ASFI | Asta Funding Inc. | 7.120 | 7.010 | 7.010 | 9,191 | 0.030 |  | 0.43 |
| ASFN | Atlantic Southern Financial Group Inc. | 1.0500 | 0.9600 | 0.9700 | 3,250 | 0.0300 |  | 3.00 |
| ASGN | On Assignment Inc. | 6.460 | 6.140 | 6.240 | 143,989 | 0.010 |  | 0.16 |
| ASGR | America Service Group Inc. | 14.01 | 13.67 | 14.01 | 44,987 | 0.33 |  | 2.41 |
| ASIA | AsiaInfo Holdings Inc. | 25.03 | 24.29 | 24.98 | 542,400 | 0.10 |  | 0.40 |
| ASMI | ASM International N.V. | 23.50 | 22.55 | 22.98 | 176,222 | 0.69 |  | 2.92 |
| ASML | ASML Holding N.V. | 30.24 | 29.70 | 30.13 | 1,531,700 | 0.15 |  | 0.50 |
| ASPM | Aspect Medical Systems Inc. | 12.30 | 11.98 | 12.27 | 454,592 | 0.27 |  | 2.25 |
| ASPS | ALTISOURCE PORTFOLIO SOLUTIONS | 17.14 | 16.60 | 16.60 | 32,748 | 0.29 |  | 1.72 |
| ASRV | AmeriServ Financial Inc. | 1.620 | 1.520 | 1.620 | 14,326 | 0.110 |  | 7.28 |
| ASRVP | AmeriServ Financial Inc. | 20.03 | 20.03 | 20.03 | 141 | 0.97 |  | 4.62 |
| ASTC | ASTROTECH CORPORATION | 1.680 | 1.590 | 1.590 | 80,567 | 0.030 |  | 1.85 |
| ASTE | Astec Industries Inc. | 25.64 | 24.96 | 25.42 | 111,958 | 0.38 |  | 1.47 |
| ASTI | Ascent Solar Technologies Inc. | 4.970 | 4.800 | 4.820 | 206,208 | 0.010 |  | 0.21 |
| ASTIZ | Ascent Solar Technologies Inc. | 1.400 | 1.380 | 1.380 | 7,450 | 0.050 |  | 3.50 |
| ASTM | Aastrom Biosciences Inc. | 0.3100 | 0.3000 | 0.3100 | 710,034 | 0.0000 |  | 0.00 |
| ASUR | Forgent Networks Inc | 0.2500 | 0.2300 | 0.2500 | 76,430 | 0.0200 |  | 8.70 |
| ASYS | Amtech Systems Inc. | 6.600 | 5.890 | 6.150 | 30,404 | 0.270 |  | 4.21 |
| ATAC | ATC Technology Corporation | 23.22 | 22.34 | 22.78 | 63,684 | 0.26 |  | 1.15 |
| ATAI | ATA Inc. | 5.110 | 4.650 | 5.000 | 20,112 | 0.290 |  | 6.16 |
| ATAX | America First Tax Exempt Investors L.P. | 5.500 | 5.400 | 5.450 | 11,250 | 0.050 |  | 0.91 |
| ATBC | Atlantic BancGroup Inc | 4.560 | 4.500 | 4.550 | 2,250 | 0.150 |  | 3.19 |
| ATCO | American Technology Corporation | 1.510 | 1.150 | 1.460 | 147,492 | 0.080 |  | 5.19 |
| ATEA | Astea International Inc. | 3.400 | 3.210 | 3.400 | 9,100 | 0.000 |  | 0.00 |
| ATEC | Alphatec Holdings Inc. | 4.560 | 4.130 | 4.190 | 221,048 | 0.230 |  | 5.20 |
| ATGN | AltiGen Communications Inc. | 1.0200 | 0.8800 | 0.9000 | 12,354 | 0.1100 |  | 10.89 |
| ATHN | athenahealth Inc. | 42.90 | 41.41 | 42.27 | 395,751 | 0.18 |  | 0.42 |
| ATHR | Atheros Communications Inc. | 27.81 | 27.27 | 27.55 | 684,557 | 0.27 |  | 0.97 |
| ATHX | Athersys Inc. | 1.0100 | 1.0000 | 1.0000 | 7,255 | 0.0300 |  | 2.91 |
| ATLO | Ames National Corporation | 19.57 | 19.15 | 19.28 | 7,664 | 0.03 |  | 0.16 |
| ATLS | Atlas America Inc. | 26.38 | 25.39 | 25.78 | 816,028 | 0.47 |  | 1.79 |
| ATMI | ATMI Inc. | 15.65 | 15.22 | 15.60 | 157,621 | 0.23 |  | 1.50 |
| ATML | Atmel Corporation | 4.020 | 3.950 | 3.980 | 2,294,802 | 0.030 |  | 0.75 |
| ATNI | Atlantic Tele-Network Inc. | 50.39 | 48.90 | 49.69 | 25,434 | 0.14 |  | 0.28 |
| ATPG | ATP Oil & Gas Corporation | 16.20 | 15.62 | 15.93 | 1,823,718 | 0.39 |  | 2.39 |
| ATRC | AtriCure Inc. | 5.940 | 5.660 | 5.850 | 18,403 | 0.080 |  | 1.38 |
| ATRI | ATRION Corporation | 138.1 | 137.0 | 138.1 | 2,589 | 0.7 |  | 0.53 |
| ATRM | Aetrium Incorporated | 2.660 | 2.450 | 2.570 | 18,389 | 0.030 |  | 1.15 |
| ATRN | ATRINSIC INC | 0.9100 | 0.8300 | 0.8400 | 11,676 | 0.0100 |  | 1.18 |
| ATRO | Astronics Corporation | 8.140 | 7.870 | 8.040 | 26,322 | 0.140 |  | 1.77 |
| ATSG | Air Transport Services Group Inc | 2.600 | 2.200 | 2.370 | 278,236 | 0.010 |  | 0.42 |
| ATSI | ATS Medical Inc. | 2.920 | 2.800 | 2.850 | 150,158 | 0.000 |  | 0.00 |
| ATVI | Activision Blizzard Inc | 11.56 | 11.32 | 11.38 | 12,281,000 | 0.19 |  | 1.64 |
| ATX | CROSS A T CO | 3.870 | 3.790 | 3.870 | 400 | 0.070 |  | 1.84 |
| AUBN | Auburn National Bancorporation Inc. | 19.77 | 19.51 | 19.72 | 3,013 | 0.21 |  | 1.05 |
| AUDC | AudioCodes Ltd. | 2.630 | 2.510 | 2.600 | 49,592 | 0.080 |  | 3.17 |
| AUTC | AUTOCHINA INTERNATIONAL LIMI | 24.98 | 24.05 | 24.05 | 2,437 | 1.95 |  | 7.50 |
| AUTCU | AUTOCHINA INTERNATIONAL LIMITED | 40.10 | 40.10 | 40.10 | 100 | 0.10 |  | 0.25 |
| AUTCW | AUTOCHINA INTERNATIONAL LIMI | 18.50 | 17.90 | 18.00 | 2,675 | 0.50 |  | 2.70 |
| AUTH | AuthenTec Inc. | 2.240 | 2.150 | 2.200 | 41,075 | 0.020 |  | 0.92 |
| AUXL | Auxilium Pharmaceuticals Inc. | 35.22 | 34.68 | 34.93 | 332,156 | 0.07 |  | 0.20 |
| AVAV | AeroVironment Inc. | 28.51 | 27.93 | 28.15 | 61,006 | 0.10 |  | 0.36 |
| AVCA | Advocat Inc. | 6.900 | 6.380 | 6.650 | 5,644 | 0.140 |  | 2.15 |
| AVCT | Avocent Corporation | 24.97 | 24.93 | 24.97 | 948,432 | 0.02 |  | 0.08 |
| AVGN | Avigen Inc. | 1.540 | 1.420 | 1.420 | 18,239 | 0.020 |  | 1.39 |
| AVGO | Avantgo Inc | 15.65 | 15.31 | 15.44 | 423,759 | 0.13 |  | 0.83 |
| AVID | Avid Technology Inc. | 11.88 | 11.54 | 11.78 | 138,669 | 0.09 |  | 0.77 |
| AVII | AVI BioPharma Inc. | 1.550 | 1.450 | 1.460 | 1,038,007 | 0.090 |  | 5.81 |
| AVNR | Avanir Pharmaceuticals | 1.810 | 1.770 | 1.810 | 320,917 | 0.010 |  | 0.56 |
| AVTR | Avatar Holdings Inc. | 16.55 | 16.26 | 16.27 | 32,917 | 0.23 |  | 1.39 |
| AWBC | AmericanWest Bancorporation | 0.5500 | 0.3500 | 0.4600 | 401,739 | 0.1200 |  | 35.29 |
| AWRE | Aware Inc. | 2.340 | 2.250 | 2.300 | 3,910 | 0.020 |  | 0.86 |
| AXAS | Abraxas Petroleum Corporation | 2.060 | 1.880 | 2.000 | 381,144 | 0.060 |  | 2.91 |
| AXTI | AXT Inc | 2.390 | 2.250 | 2.260 | 248,813 | 0.140 |  | 5.83 |
| AXYS | Axsys Technologies Inc. | 54.01 | 53.98 | 54.01 | 168,423 | 0.00 |  | 0.00 |