| Code | Name | High | Low | Close | Volume | Change |
|---|
| QABA | First Trust NASDAQ ABA Community Bank | 21.55 | 21.36 | 21.41 | 1,813 | 0.23 |  | 1.09 |
| QADI | QAD Inc. | 4.180 | 4.050 | 4.080 | 6,355 | 0.050 |  | 1.21 |
| QBAK | Qualstar Corporation | 1.500 | 1.490 | 1.500 | 13,333 | 0.040 | | 2.60 |
| QCCO | QC Holdings Inc. | 4.060 | 3.960 | 3.990 | 3,100 | 0.180 | | 4.72 |
| QCLN | First Trust NASDAQ Clean Edge Green | 14.29 | 14.22 | 14.22 | 2,678 | 0.03 | | 0.21 |
| QCOM | QUALCOMM Incorporated | 41.14 | 40.63 | 40.92 | 14,061,160 | 0.35 | | 0.86 |
| QCOR | Questcor Pharmaceuticals Inc. | 10.63 | 9.71 | 10.38 | 1,686,103 | 0.76 | | 7.90 |
| QCRH | QCR Holdings Inc. | 9.600 | 9.460 | 9.600 | 400 | 0.010 | | 0.10 |
| QDEL | Quidel Corporation | 11.63 | 11.13 | 11.20 | 287,874 | 0.37 | | 3.20 |
| QGEN | Qiagen N.V. | 18.85 | 18.62 | 18.67 | 863,853 | 0.17 | | 0.92 |
| QKLS | QKL Stores Inc. | 4.870 | 4.700 | 4.840 | 11,395 | 0.050 | | 1.04 |
| QLGC | QLogic Corporation | 16.49 | 16.19 | 16.23 | 2,398,057 | 0.05 | | 0.31 |
| QLIK | Qlik Technologies Inc. | 19.40 | 18.70 | 18.80 | 199,418 | 0.09 | | 0.48 |
| QLTI | QLT Inc. | 6.130 | 6.040 | 6.105 | 146,323 | 0.090 | | 1.50 |
| QLTY | Quality Distribution Inc. | 5.530 | 5.050 | 5.470 | 281,243 | 0.440 | | 8.75 |
| QNST | QuinStreet Inc. | 12.27 | 11.81 | 12.25 | 454,597 | 0.27 | | 2.25 |
| QQEW | First Trust NASDAQ-100 Equal Weighted | 20.30 | 20.01 | 20.20 | 9,851 | 0.21 | | 1.05 |
| QQQQ | PowerShares QQQ Trust Series 1 | 46.45 | 45.82 | 46.25 | 66,856,252 | 0.55 | | 1.20 |
| QQQX | NASDAQ Premium Income and Growth Fund | 13.18 | 13.02 | 13.11 | 51,432 | 0.19 | | 1.47 |
| QQXT | First Trust NASDAQ-100 Ex-Technology | 18.48 | 18.34 | 18.41 | 8,760 | 0.14 | | 0.77 |
| QSFT | Quest Software Inc. | 23.44 | 21.30 | 23.37 | 1,735,070 | 1.12 | | 5.03 |
| QSII | Quality Systems Inc. | 60.99 | 60.12 | 60.50 | 121,577 | 0.71 | | 1.19 |
| QTEC | First Trust NASDAQ-100- Technology Index | 21.15 | 20.81 | 21.09 | 62,720 | 0.26 | | 1.25 |
| QTWW | Quantum Fuel Systems Technologies | 0.5500 | 0.4900 | 0.4950 | 955,606 | 0.0300 | | 5.66 |
| QUIK | QuickLogic Corporation | 3.420 | 3.360 | 3.370 | 94,242 | 0.040 | | 1.17 |
| QUOT | Life Quotes Inc. | 4.080 | 3.990 | 3.990 | 5,315 | 0.020 | | 0.50 |