| Code | Name | High | Low | Close | Volume | Change | |
|---|
| QABA | Qtec First Trust ETF | 49.95 | 48.22 | 48.63 | 59,500 | -0.91 |  | 1.84 |   |
| QADA | Qad Inc | 41.95 | 40.69 | 41.67 | 46,400 | 0.89 |  | 2.18 | |
| QADB | Q A D Inc Cl B | 31.95 | 31.10 | 31.95 | 700 | 0.85 | | 2.73 | |
| QAT | Qatar Ishares MSCI ETF | 18.67 | 18.59 | 18.59 | 4,900 | -0.20 | | 1.06 | |
| QBAK | Qualstar Corp | 5.320 | 5.150 | 5.175 | 8,200 | -0.075 | | 1.43 | |
| QCLN | Nasdaq Clean Edge Green Energy Index | 18.78 | 18.59 | 18.59 | 4,400 | -0.13 | | 0.69 | |
| QCOM | Qualcomm Inc | 54.89 | 53.67 | 53.94 | 14,071,900 | -0.22 | | 0.41 | |
| QCRH | Qcr Holdings Inc | 38.00 | 36.62 | 36.93 | 26,800 | -0.83 | | 2.20 | |
| QDEL | Quidel Cp | 64.56 | 60.47 | 60.76 | 150,100 | -2.23 | | 3.54 | |
| QIWI | Qiwi Plc ADR | 14.95 | 13.66 | 14.15 | 788,500 | 1.40 | | 10.98 | |
| QLC | Flexshares US Quality Largecap | 33.47 | 33.15 | 33.29 | 2,000 | -0.29 | | 0.86 | |
| QLYS | Qualys Inc | 74.08 | 71.77 | 71.83 | 328,700 | -0.27 | | 0.37 | |
| QNST | Quinstreet Inc | 16.53 | 15.62 | 15.64 | 758,700 | -0.68 | | 4.17 | |
| QQEW | Nasdaq-100 EW Index Fund FT | 58.79 | 57.81 | 58.14 | 27,800 | -0.23 | | 0.39 | |
| QQQ | Nasdaq QQQ ETF | 168.7 | 164.3 | 165.2 | 75,270,700 | -1.3 | | 0.76 | |
| QQQC | G-X Nasdaq China Tech ETF | 23.42 | 23.10 | 23.21 | 3,000 | 0.68 | | 3.00 | |
| QQQX | Nuveen Nasdaq 100 | 22.66 | 22.09 | 22.18 | 133,600 | -0.19 | | 0.85 | |
| QQXT | Nasdaq-100 Ex-Tech Sector Indexsm Fund | 49.80 | 49.23 | 49.33 | 2,800 | 0.06 | | 0.12 | |
| QRHC | Quest Resource | 2.000 | 1.540 | 1.670 | 246,400 | -0.590 | | 26.11 | |
| QRTEA | Qurate Retail Group | 24.22 | 23.34 | 23.43 | 3,573,200 | -0.45 | | 1.88 | |
| QRTEB | Liberty Int Qvc Sr B | 24.23 | 23.69 | 23.69 | 600 | -0.54 | | 2.23 | |
| QRVO | Qorvo Inc | 64.48 | 61.73 | 62.88 | 3,144,700 | -0.77 | | 1.21 | |
| QTEC | Nasdaq-100 Technology Index Fund FT | 72.36 | 70.70 | 71.18 | 205,100 | -0.02 | | 0.03 | |
| QTNA | Quantenna Communications Inc | 16.36 | 15.54 | 15.67 | 223,300 | -0.30 | | 1.88 | |
| QTNT | Quotient Limited Ord | 6.290 | 5.870 | 5.900 | 196,000 | -0.300 | | 4.84 | |
| QTRH | Quarterhill Inc | 1.220 | 1.140 | 1.150 | 58,900 | -0.055 | | 4.56 | |
| QTRX | Quanterix Corporation | 16.52 | 16.00 | 16.26 | 48,700 | 0.09 | | 0.56 | |
| QTT | Qutoutiao Inc. ADR | 5.480 | 5.110 | 5.390 | 593,500 | 0.170 | | 3.26 | |
| QUIK | Quicklogic Corp | 1.060 | 0.990 | 1.020 | 92,900 | 0.025 | | 2.51 | |
| QUMU | Qumu Corp | 2.360 | 2.310 | 2.320 | 7,700 | -0.070 | | 2.93 | |
| QURE | Uniqure N.V. | 24.64 | 21.98 | 22.80 | 422,400 | -1.13 | | 4.72 | |
| QYLD | Recon Nq-100 Covered Call ETF | 23.55 | 22.97 | 23.09 | 94,300 | -0.17 | | 0.73 | |