| Code | Name | High | Low | Close | Volume | Change |
| NAK | Northern Dynasty Minerals Ltd. | 2.490 | 2.050 | 2.440 | 254,400 | 0.380 |  | 18.45 |
| NAQ | NRDC Acquisition Corp | 9.040 | 9.020 | 9.030 | 37,500 | 0.010 |  | 0.11 |
| NAQ.U | NRDC Acquisition Corp | 9.160 | 9.080 | 9.160 | 5,200 | 0.010 |  | 0.11 |
| NAQ.W | NRDC Acquisition Corp | 0.1500 | 0.1500 | 0.1500 | 83,700 | 0.0000 |  | 0.00 |
| NAS | Citigroup Inc. | 10.48 | 10.37 | 10.37 | 155,900 | 0.03 |  | 0.29 |
| NBF | Nova Biosource Fuels Inc. | 0.1400 | 0.1200 | 0.1300 | 136,600 | 0.0000 |  | 0.00 |
| NBH | Neuberger Berman Intermediate Municipal | 11.30 | 10.44 | 10.64 | 33,100 | 0.12 |  | 1.12 |
| NBJ | Nuveen Ohio Dividend Advantage Municipal | 11.090 | 9.800 | 9.800 | 7,300 | 0.350 |  | 3.45 |
| NBO | Neuberger Berman New York Intermediate | 10.420 | 9.220 | 9.910 | 42,500 | 0.260 |  | 2.69 |
| NBS | Neostem Inc. | 0.7600 | 0.7500 | 0.7500 | 900 | 0.1000 |  | 11.76 |
| NBS.W | Neostem Inc. | 0.0200 | 0.0200 | 0.0200 | 100 | 0.0100 |  | 33.33 |
| NBW | Neuberger Berman California Intermediate | 11.030 | 9.660 | 9.860 | 21,000 | 0.350 |  | 3.43 |
| NBY | NovaBay Pharmaceuticals Inc. | 1.350 | 1.300 | 1.300 | 4,800 | 0.050 |  | 4.00 |
| NCU | Nuveen California Premium Income | 9.040 | 8.400 | 8.580 | 22,400 | 0.220 |  | 2.50 |
| NDD | Neuberger Berman Dividend Advantage | 4.300 | 3.750 | 4.050 | 41,900 | 0.190 |  | 4.48 |
| NEA | Nuveen Insured Tax-Free Advantage | 10.320 | 9.940 | 9.940 | 69,900 | 0.260 |  | 2.55 |
| NEH | AB Svensk Ekportkredit (Swedish Export | 5.220 | 4.920 | 5.220 | 60,100 | 0.190 |  | 3.78 |
| NEN | New England Realty Associates Limited | 60.00 | 56.99 | 60.00 | 2,500 | 1.50 |  | 2.56 |
| NEP | Nephros Inc. | 0.1200 | 0.1000 | 0.1000 | 86,000 | 0.0000 |  | 0.00 |
| NFC | Nuveen Connecticut Dividend Advantage | 11.69 | 11.10 | 11.42 | 2,700 | 0.27 |  | 2.31 |
| NFM | Nuveen Maryland Dividend Advantage | 10.000 | 9.250 | 9.550 | 16,600 | 0.050 |  | 0.53 |
| NFO | Claymore Exchange-Traded Fund Trust | 14.55 | 13.82 | 14.33 | 13,200 | 0.01 |  | 0.07 |
| NFZ | Nuveen Arizona Dividend Advantage | 9.390 | 9.350 | 9.390 | 1,800 | 0.040 |  | 0.43 |
| NG | Novagold Resources Inc New | 1.700 | 1.380 | 1.700 | 2,134,700 | 0.400 |  | 30.77 |
| NGB | Nuveen Virginia Dividend Advantage | 10.400 | 9.770 | 9.800 | 7,400 | 0.600 |  | 5.77 |
| NGD | NEW GOLD INC. | 1.090 | 0.870 | 1.090 | 1,470,600 | 0.240 |  | 28.24 |
| NGK | Nuveen Connecticut Dividend Advantage | 12.15 | 11.73 | 11.78 | 1,800 | 0.38 |  | 3.13 |
| NGO | Nuveen Connecticut Dividend Advantage | 11.29 | 10.39 | 11.05 | 15,300 | 0.55 |  | 5.24 |
| NGS | Natural Gas Services Group Inc. | 12.95 | 11.68 | 12.11 | 93,000 | 0.50 |  | 4.31 |
| NGX | Nuveen Insured Massachusetts Tax-Free | 11.40 | 11.07 | 11.40 | 5,200 | 0.27 |  | 2.43 |
| NHC | National HealthCare Corporation | 43.50 | 34.10 | 43.50 | 54,800 | 8.50 |  | 24.29 |
| NHC-A | National HealthCare Corporation | 11.50 | 10.00 | 11.50 | 45,300 | 1.25 |  | 12.20 |
| NHR | National Health Realty, Inc. | 8.480 | 8.390 | 8.420 | 50,000 | 0.050 |  | 0.60 |
| NHR.U | North Asia Investment Corp. | 8.590 | 8.220 | 8.590 | 11,400 | 0.010 |  | 0.12 |
| NHR.W | NORTH ASIA INV WTS | 0.1000 | 0.1000 | 0.1000 | 19,400 | 0.0000 |  | 0.00 |
| NIB | IPATH DJ-AIG COCOA | 32.18 | 32.05 | 32.18 | 400 | 0.49 |  | 1.55 |
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