| Code | Name | High | Low | Close | Volume | Change | |
|---|
| QABA | Qtec First Trust ETF | 50.41 | 50.05 | 50.20 | 27,600 | -0.07 |  | 0.14 |   |
| QADA | Qad Inc | 34.45 | 33.55 | 33.85 | 27,600 | -0.40 | | 1.17 | |
| QADB | Q A D Inc Cl B | 29.00 | 27.89 | 28.15 | 5,700 | 0.37 |  | 1.33 | |
| QAT | Ishares Qatar Capped ETF | 15.86 | 15.74 | 15.82 | 27,900 | 0.01 | | 0.03 | |
| QBAK | Qualstar Corp | 6.120 | 5.920 | 5.930 | 9,900 | -0.170 | | 2.79 | |
| QCLN | Nasdaq Clean Edge Green Energy Index | 19.22 | 19.01 | 19.02 | 17,600 | -0.14 | | 0.73 | |
| QCOM | Qualcomm Inc | 52.20 | 51.71 | 52.03 | 5,750,600 | 0.05 | | 0.10 | |
| QCRH | Qcr Holdings Inc | 44.00 | 42.75 | 43.85 | 52,500 | 0.90 | | 2.10 | |
| QDEL | Quidel Cp | 43.88 | 43.03 | 43.13 | 340,600 | -0.41 | | 0.94 | |
| QGEN | Qiagen N.V. | 32.13 | 31.77 | 31.87 | 1,056,400 | -0.09 | | 0.28 | |
| QINC | Rba Quality Income ETF FT | 24.50 | 24.34 | 24.40 | 3,800 | -0.18 | | 0.73 | |
| QIWI | Qiwi Plc ADR | 18.59 | 16.66 | 17.94 | 650,900 | 1.33 | | 8.01 | |
| QLC | Flexshares US Quality Largecap | 30.65 | 30.63 | 30.64 | 3,000 | 0.16 | | 0.52 | |
| QLYS | Qualys Inc | 52.45 | 51.20 | 51.45 | 292,000 | -1.00 | | 1.91 | |
| QNST | Quinstreet Inc | 7.500 | 7.125 | 7.380 | 356,300 | 0.240 | | 3.36 | |
| QQEW | Nasdaq-100 EW Index Fund FT | 55.20 | 54.84 | 54.98 | 14,200 | -0.26 | | 0.47 | |
| QQQ | Nasdaq QQQ ETF | 145.3 | 144.0 | 144.5 | 28,841,800 | -0.9 | | 0.61 | |
| QQQC | G-X Nasdaq China Tech ETF | 28.83 | 28.54 | 28.68 | 2,700 | 0.08 | | 0.28 | |
| QQQX | Nuveen Nasdaq 100 | 21.84 | 21.55 | 21.55 | 100,600 | -0.23 | | 1.06 | |
| QQXT | Nasdaq-100 Ex-Tech Sector Indexsm Fund | 46.76 | 46.61 | 46.61 | 1,500 | -0.16 | | 0.33 | |
| QRHC | Quest Resource | 1.240 | 1.100 | 1.170 | 27,800 | 0.030 | | 2.63 | |
| QRVO | Qorvo Inc | 70.72 | 69.06 | 70.61 | 1,653,500 | 0.29 | | 0.41 | |
| QSII | Quality Systems Inc | 15.09 | 14.69 | 15.02 | 197,200 | 0.21 | | 1.42 | |
| QTEC | Nasdaq-100 Technology Index Fund FT | 67.22 | 66.42 | 66.78 | 94,700 | -0.46 | | 0.68 | |
| QTNA | Quantenna Communications Inc | 17.45 | 17.01 | 17.19 | 198,300 | 0.10 | | 0.59 | |
| QTNT | Quotient Limited Ord | 4.820 | 4.510 | 4.600 | 124,300 | -0.010 | | 0.22 | |
| QTRH | Quarterhill Inc | 1.350 | 1.330 | 1.330 | 2,800 | -0.010 | | 0.75 | |
| QUIK | Quicklogic Corp | 1.780 | 1.690 | 1.720 | 178,500 | -0.030 | | 1.71 | |
| QUMU | Qumu Corporation | 2.890 | 2.760 | 2.830 | 4,800 | 0.010 | | 0.35 | |
| QURE | Uniqure N.V. | 9.640 | 8.450 | 9.510 | 517,000 | 1.020 | | 12.01 | |
| QVCA | Liberty Int Qvc Sr A | 23.42 | 22.93 | 23.13 | 1,997,600 | -0.06 | | 0.26 | |
| QVCB | Liberty Int Qvc Sr B | 23.39 | 22.64 | 23.39 | 200 | 0.77 | | 3.40 | |
| QYLD | Recon Nq-100 Covered Call ETF | 23.91 | 23.69 | 23.78 | 27,600 | -0.07 | | 0.29 | |