| Code | Name | High | Low | Close | Volume | Change |
| NABI | Nabi Biopharmaceuticals | 3.480 | 3.320 | 3.380 | 143,902 | 0.020 |  | 0.59 |
| NADX | National Dentex Corporation | 8.090 | 7.800 | 7.990 | 12,360 | 0.340 |  | 4.08 |
| NAFC | Nash-Finch Company | 29.48 | 28.75 | 29.05 | 32,388 | 0.40 |  | 1.36 |
| NAII | Natural Alternatives International Inc. | 7.340 | 7.340 | 7.340 | 300 | 0.020 |  | 0.27 |
| NANO | Nanometrics Incorporated | 7.750 | 7.450 | 7.470 | 121,226 | 0.220 |  | 2.86 |
| NANX | Nanophase Technologies Corporation | 1.0200 | 0.9900 | 0.9900 | 5,414 | 0.0100 |  | 1.00 |
| NARA | Nara Bancorp Inc. | 7.390 | 7.080 | 7.360 | 142,884 | 0.120 |  | 1.66 |
| NASB | NASB Financial Inc. | 23.06 | 22.54 | 22.58 | 6,563 | 0.22 |  | 0.96 |
| NATH | Nathan's Famous Inc. | 14.87 | 14.80 | 14.80 | 8,664 | 0.05 |  | 0.34 |
| NATI | National Instruments Corporation | 27.42 | 26.81 | 27.15 | 158,027 | 0.07 |  | 0.26 |
| NATL | National Interstate Corporation | 18.04 | 17.27 | 17.28 | 8,426 | 0.81 |  | 4.48 |
| NATR | Nature's Sunshine Products, Inc. | 8.250 | 7.060 | 7.990 | 3,502 | 0.270 |  | 3.27 |
| NAVG | Navigators Group Inc. (The) | 53.18 | 49.54 | 49.87 | 386,283 | 3.88 |  | 7.22 |
| NAVI | NaviSite Inc. | 2.100 | 1.900 | 2.070 | 43,266 | 0.010 |  | 0.49 |
| NAVR | Navarre Corporation | 2.730 | 2.550 | 2.580 | 85,819 | 0.110 |  | 4.09 |
| NBBC | NewBridge Bancorp | 2.500 | 2.277 | 2.280 | 3,213 | 0.170 |  | 6.94 |
| NBIX | Neurocrine Biosciences Inc. | 2.290 | 2.120 | 2.270 | 258,399 | 0.120 |  | 5.58 |
| NBN | Northeast Bancorp | 9.020 | 9.020 | 9.020 | 400 | 0.230 |  | 2.49 |
| NBTB | NBT Bancorp Inc. | 21.45 | 20.91 | 21.14 | 52,362 | 0.11 |  | 0.52 |
| NBTF | NB&T FINANCIAL GROUP INC | 15.85 | 15.85 | 15.85 | 100 | 0.39 |  | 2.52 |
| NBXH | Morgan Stanley | 8.100 | 7.720 | 7.838 | 5,785 | 0.240 |  | 2.97 |
| NCBC | New Century Bancorp Inc. (NC) | 6.000 | 5.500 | 5.640 | 18,661 | 0.110 |  | 1.91 |
| NCIT | NCI Inc. | 29.19 | 28.58 | 28.88 | 52,077 | 0.16 |  | 0.55 |
| NCMI | National CineMedia Inc. | 14.90 | 14.37 | 14.80 | 411,259 | 0.36 |  | 2.37 |
| NCOC | National Coal Corp. | 1.160 | 0.990 | 1.090 | 1,024,016 | 0.090 |  | 9.00 |
| NCST | NUCRYST Pharmaceuticals Corp. | 1.0300 | 0.9900 | 1.0000 | 6,360 | 0.0300 |  | 2.91 |
| NCTY | The9 | 8.050 | 7.850 | 7.940 | 175,744 | 0.100 |  | 1.24 |
| NDAQ | NASDAQ OMX Group Inc. (The) | 18.46 | 17.85 | 18.46 | 2,936,817 | 0.39 |  | 2.16 |
| NDSN | Nordson Corporation | 55.84 | 53.58 | 54.89 | 96,120 | 0.40 |  | 0.72 |
| NEBS | New England Bancshares Inc. | 5.000 | 4.990 | 5.000 | 1,800 | 0.200 |  | 4.17 |
| NECB | Northeast Community Bancorp Inc. | 7.240 | 6.780 | 6.970 | 4,204 | 0.070 |  | 0.99 |
| NENG | Network Engines Inc | 1.200 | 1.150 | 1.170 | 86,899 | 0.030 |  | 2.50 |
| NEOG | Neogen Corporation | 31.84 | 31.30 | 31.83 | 21,716 | 0.01 |  | 0.03 |
| NEPT | Neptune Technologies & Bioresources Inc | 2.080 | 1.940 | 2.040 | 3,800 | 0.040 |  | 1.92 |
| NETC | NET Servicos de Comunicacao S.A. | 14.00 | 13.55 | 13.91 | 517,272 | 0.18 |  | 1.31 |
| NETL | NetLogic Microsystems Inc. | 41.71 | 40.09 | 40.17 | 390,167 | 1.02 |  | 2.48 |
| NEWP | Newport Corporation | 8.210 | 7.910 | 8.070 | 76,313 | 0.080 |  | 0.98 |
| NEWS | NewStar Financial Inc. | 3.040 | 2.850 | 2.910 | 141,804 | 0.030 |  | 1.02 |
| NEWT | Newtek Business Services Inc. | 0.9500 | 0.8300 | 0.9200 | 73,500 | 0.0300 |  | 3.16 |
| NEXM | NexMed Inc. | 0.1410 | 0.1300 | 0.1399 | 407,075 | 0.0000 |  | 0.00 |
| NEXS | Nexxus Lighting Inc. | 4.530 | 4.430 | 4.450 | 17,213 | 0.080 |  | 1.77 |
| NFBK | Northfield Bancorp Inc. | 12.97 | 12.66 | 12.97 | 18,871 | 0.12 |  | 0.93 |
| NFLX | Netflix Inc. | 56.02 | 54.00 | 55.86 | 1,714,904 | 0.53 |  | 0.94 |
| NFSB | Newport Bancorp Inc. | 12.44 | 12.03 | 12.03 | 14,700 | 0.37 |  | 2.98 |
| NGA | North American Galvanizing & Coatings | 5.100 | 4.820 | 5.060 | 142,210 | 0.020 |  | 0.39 |
| NGAS | NGAS Resources Inc. | 1.810 | 1.700 | 1.740 | 116,280 | 0.010 |  | 0.58 |
| NGBF | NEW GENERATION BIOFUELS HOLDIN | 1.0200 | 0.9600 | 0.9800 | 33,050 | 0.0200 |  | 2.00 |
| NGLS | Targa Resources Partners LP | 19.80 | 19.09 | 19.75 | 269,252 | 0.38 |  | 1.96 |
| NGPC | NGP Capital Resources Company | 7.690 | 7.250 | 7.670 | 50,936 | 0.320 |  | 4.35 |
| NGSX | NeurogesX Inc. | 7.650 | 7.200 | 7.270 | 49,602 | 0.370 |  | 4.84 |
| NHTB | New Hampshire Thrift Bancshares Inc. | 9.730 | 9.730 | 9.730 | 100 | 0.130 |  | 1.35 |
| NHWK | NightHawk Radiology Holdings Inc. | 5.530 | 4.840 | 5.150 | 3,214,505 | 1.610 |  | 23.82 |
| NICE | NICE-Systems | 30.40 | 29.87 | 30.21 | 273,861 | 0.12 |  | 0.40 |
| NICK | Nicholas Financial Inc. | 6.800 | 6.430 | 6.800 | 1,356 | 0.000 |  | 0.00 |
| NIHD | NII Holdings Inc. | 27.94 | 27.50 | 27.82 | 1,801,295 | 0.02 |  | 0.07 |
| NILE | Blue Nile Inc. | 64.15 | 59.72 | 61.10 | 571,627 | 2.38 |  | 4.05 |
| NINE | Ninetowns Internet Technology Group | 1.820 | 1.670 | 1.700 | 6,526 | 0.050 |  | 2.86 |
| NITE | Knight Capital Group Inc. | 16.43 | 15.65 | 16.37 | 3,120,337 | 0.45 |  | 2.83 |
| NKSH | National Bankshares Inc. | 27.72 | 27.32 | 27.64 | 5,768 | 0.07 |  | 0.25 |
| NKTR | Nektar Therapeutics | 8.910 | 8.160 | 8.880 | 699,094 | 0.570 |  | 6.86 |
| NLCI | Nobel Learning Communities Inc. | 9.000 | 8.570 | 8.840 | 1,907 | 0.240 |  | 2.79 |
| NLST | Netlist Inc. | 0.8600 | 0.8000 | 0.8300 | 65,848 | 0.0700 |  | 9.21 |
| NLTX | Nile Therapeutics Inc. | 1.500 | 1.430 | 1.450 | 3,500 | 0.050 |  | 3.33 |
| NMRX | Numerex Corp. | 4.650 | 4.550 | 4.650 | 8,200 | 0.100 |  | 2.20 |
| NMTI | NMT Medical Inc. | 1.700 | 1.650 | 1.690 | 3,625 | 0.040 |  | 2.42 |
| NNBR | NN Inc. | 4.480 | 4.240 | 4.380 | 25,001 | 0.050 |  | 1.13 |
| NOBH | Nobility Homes Inc. | 10.30 | 10.28 | 10.30 | 510 | 0.05 |  | 0.48 |
| NOEC | New Oriental Energy & Chemical Corp. | 1.070 | 1.030 | 1.030 | 7,580 | 0.040 |  | 3.74 |
| NOIZ | Micronetics Inc. | 3.440 | 3.250 | 3.390 | 6,208 | 0.140 |  | 4.31 |
| NOOF | New Frontier Media Inc. | 2.030 | 1.990 | 2.000 | 5,330 | 0.050 |  | 2.44 |
| NOVA | NovaMed Inc. | 4.230 | 4.040 | 4.160 | 52,748 | 0.040 |  | 0.97 |
| NOVB | North Valley Bancorp | 2.520 | 2.500 | 2.500 | 4,200 | 0.020 |  | 0.79 |
| NOVL | Novell Inc. | 4.160 | 4.020 | 4.150 | 2,555,345 | 0.070 |  | 1.72 |
| NOVN | Noven Pharmaceuticals Inc. | 16.50 | 16.46 | 16.47 | 1,737,027 | 0.00 |  | 0.00 |
| NPBC | National Penn Bancshares Inc. | 5.970 | 5.730 | 5.920 | 1,924,512 | 0.030 |  | 0.51 |
| NPBCO | National Penn Bancshares Inc. | 21.52 | 21.50 | 21.52 | 300 | 0.02 |  | 0.09 |
| NPSP | NPS Pharmaceuticals Inc. | 3.120 | 3.010 | 3.120 | 170,646 | 0.020 |  | 0.65 |
| NRCI | National Research Corporation | 24.00 | 23.65 | 23.93 | 3,043 | 0.43 |  | 1.83 |
| NRGN | Neurogen Corporation | 0.1797 | 0.1700 | 0.1700 | 521,585 | 0.0000 |  | 0.00 |
| NRGP | Inergy Holdings L.P. | 51.09 | 48.65 | 50.30 | 21,250 | 0.45 |  | 0.89 |
| NRGY | Inergy L.P. | 31.50 | 31.00 | 31.44 | 104,847 | 0.26 |  | 0.83 |
| NRIM | Northrim BanCorp Inc | 15.89 | 15.56 | 15.78 | 20,775 | 0.15 |  | 0.94 |
| NSEC | National Security Group Inc. | 7.950 | 7.950 | 7.950 | 460 | 0.050 |  | 0.63 |
| NSFC | Northern States Financial Corporation | 2.750 | 2.680 | 2.750 | 1,500 | 0.160 |  | 5.50 |
| NSHA | Nashua Corporation | 9.020 | 8.430 | 8.930 | 1,086,604 | 0.290 |  | 3.36 |
| NSIT | Insight Enterprises Inc. | 11.05 | 10.47 | 10.48 | 214,556 | 0.53 |  | 4.81 |
| NSPH | Nanosphere Inc. | 6.910 | 6.500 | 6.770 | 64,355 | 0.170 |  | 2.58 |
| NSSC | Napco Security Systems Inc. | 1.950 | 1.850 | 1.880 | 6,500 | 0.050 |  | 2.73 |
| NSTC | Ness Technologies Inc. | 5.210 | 5.060 | 5.190 | 239,698 | 0.010 |  | 0.19 |
| NSUR | Insure.com Inc. | 3.120 | 3.120 | 3.120 | 100 | 0.250 |  | 7.42 |
| NSYS | Nortech Systems Incorporated | 3.010 | 2.950 | 3.010 | 1,299 | 0.070 |  | 2.38 |
| NTAP | NetApp Inc. | 28.94 | 28.15 | 28.38 | 3,330,001 | 0.39 |  | 1.36 |
| NTCT | NetScout Systems Inc. | 13.00 | 12.40 | 12.98 | 192,179 | 0.25 |  | 1.96 |
| NTES | Netease.com Inc. | 40.88 | 39.23 | 40.68 | 1,344,712 | 1.06 |  | 2.68 |
| NTGR | NETGEAR Inc. | 19.46 | 18.88 | 19.07 | 295,504 | 0.39 |  | 2.00 |
| NTIC | Northern Technologies International | 8.330 | 8.310 | 8.330 | 400 | 0.780 |  | 10.33 |
| NTII | Neurobiological Technologies Inc. | 0.9480 | 0.9300 | 0.9480 | 14,912 | 0.0300 |  | 3.26 |
| NTLS | NTELOS Holdings Corp. | 15.42 | 14.10 | 15.34 | 1,193,142 | 0.11 |  | 0.71 |
| NTRI | NutriSystem Inc | 22.35 | 21.30 | 22.32 | 710,933 | 0.62 |  | 2.86 |
| NTRS | Northern Trust Corporation | 50.53 | 49.35 | 49.73 | 2,638,355 | 0.69 |  | 1.37 |
| NTSC | National Technical Systems Inc. | 5.700 | 5.500 | 5.600 | 3,500 | 0.100 |  | 1.75 |
| NTWK | NetSol Technologies Inc. | 1.060 | 1.020 | 1.060 | 147,556 | 0.010 |  | 0.95 |
| NUAN | Nuance Communications Inc. | 14.00 | 13.65 | 13.76 | 1,072,079 | 0.21 |  | 1.50 |
| NUCL | iShares S&P Global Nuclear Index Fund | 40.96 | 39.53 | 40.78 | 5,720 | 0.15 |  | 0.37 |
| NUHC | Nu Horizons Electronics Corp. | 4.500 | 4.100 | 4.270 | 88,207 | 0.080 |  | 1.84 |
| NURO | NeuroMetrix Inc. | 2.980 | 2.650 | 2.740 | 69,896 | 0.250 |  | 8.36 |
| NUTR | Nutraceutical International Corporation | 11.80 | 11.45 | 11.47 | 9,152 | 0.32 |  | 2.71 |
| NUVA | NuVasive Inc. | 37.70 | 36.33 | 36.95 | 337,028 | 0.44 |  | 1.18 |
| NVAX | Novavax Inc. | 4.030 | 3.850 | 3.940 | 1,635,738 | 0.090 |  | 2.23 |
| NVDA | NVIDIA Corporation | 13.43 | 12.88 | 13.16 | 41,009,141 | 0.89 |  | 7.25 |
| NVEC | NVE Corporation | 39.28 | 37.84 | 38.12 | 48,568 | 0.77 |  | 1.98 |
| NVGN | Novogen | 2.630 | 2.520 | 2.550 | 7,281 | 0.000 |  | 0.00 |
| NVLS | Novellus Systems Inc. | 20.62 | 20.11 | 20.37 | 1,887,209 | 0.10 |  | 0.49 |
| NVMI | Nova Measuring Instruments Ltd. | 2.910 | 2.830 | 2.860 | 13,999 | 0.010 |  | 0.35 |
| NVSL | Naugatuck Valley Financial Corporation | 4.450 | 4.450 | 4.450 | 100,255 | 0.020 |  | 0.45 |
| NVTL | Novatel Wireless Inc. | 9.450 | 9.100 | 9.290 | 1,042,899 | 0.010 |  | 0.11 |
| NWFL | Norwood Financial Corp. | 27.60 | 27.09 | 27.09 | 864 | 0.73 |  | 2.62 |
| NWK | NETWORK EQUIP TECH | 4.320 | 3.820 | 3.910 | 232,712 | 0.450 |  | 10.32 |
| NWLI | NATL WESTERN LIFE | 196.0 | 180.0 | 181.0 | 8,109 | 10.0 |  | 5.23 |
| NWPX | Northwest Pipe Company | 33.05 | 31.04 | 32.27 | 87,783 | 0.97 |  | 3.10 |
| NWS | NEWS CORP | 14.18 | 13.80 | 14.15 | 1,942,054 | 0.04 |  | 0.28 |
| NWSA | NEWS CORP CL A | 12.08 | 11.69 | 12.06 | 11,226,052 | 0.12 |  | 1.01 |
| NWSB | Northwest Bancorp Inc. | 21.44 | 21.13 | 21.25 | 48,764 | 0.32 |  | 1.48 |
| NXST | Nexstar Broadcasting Group Inc. | 2.480 | 2.410 | 2.430 | 5,922 | 0.010 |  | 0.41 |
| NXTM | NxStage Medical Inc. | 6.500 | 6.090 | 6.370 | 64,434 | 0.190 |  | 3.07 |
| NXXI | Nutrition 21 Inc. | 0.0800 | 0.0800 | 0.0800 | 1,778,201 | 0.0000 |  | 0.00 |
| NYER | Nyer Medical Group Inc. | 1.830 | 1.810 | 1.830 | 2,512 | 0.010 |  | 0.54 |
| NYFX | NYFIX Inc. | 1.670 | 1.660 | 1.660 | 26,965 | 0.010 |  | 0.60 |
| NYMT | New York Mortgage Trust Inc. | 7.000 | 6.350 | 6.849 | 105,891 | 0.100 |  | 1.44 |
| NYMX | Nymox Pharmaceutical Corporation | 5.130 | 4.600 | 5.110 | 22,056 | 0.010 |  | 0.20 |
| NYNY | Empire Resorts Inc. | 3.190 | 2.900 | 3.150 | 127,709 | 0.110 |  | 3.62 |