| Code | Name | High | Low | Close | Volume | Change | |
|---|
| QABA | Qtec First Trust ETF | 56.82 | 55.89 | 56.71 | 62,800 | -0.16 |  | 0.28 |   |
| QADA | Qad Inc | 45.80 | 45.18 | 45.70 | 28,900 | 0.05 |  | 0.11 | |
| QADB | Q A D Inc Cl B | 35.98 | 33.56 | 34.80 | 4,600 | -1.75 | | 4.79 | |
| QAT | Qatar Ishares MSCI ETF | 16.80 | 16.63 | 16.73 | 106,100 | -0.13 | | 0.77 | |
| QBAK | Qualstar Corp | 9.510 | 9.270 | 9.370 | 7,700 | -0.040 | | 0.43 | |
| QCLN | Nasdaq Clean Edge Green Energy Index | 20.37 | 20.05 | 20.06 | 9,100 | -0.06 | | 0.30 | |
| QCOM | Qualcomm Inc | 59.25 | 58.05 | 59.08 | 12,487,100 | 0.26 | | 0.44 | |
| QCRH | Qcr Holdings Inc | 48.45 | 47.60 | 48.15 | 34,000 | -0.25 | | 0.52 | |
| QDEL | Quidel Cp | 63.08 | 61.71 | 61.90 | 175,800 | -0.84 | | 1.34 | |
| QINC | Rba Quality Income ETF FT | 24.76 | 24.73 | 24.76 | 1,000 | 0.10 | | 0.41 | |
| QIWI | Qiwi Plc ADR | 18.38 | 17.05 | 17.19 | 491,000 | -1.42 | | 7.63 | |
| QLC | Flexshares US Quality Largecap | 34.55 | 34.37 | 34.49 | 8,200 | -0.04 | | 0.12 | |
| QLYS | Qualys Inc | 75.35 | 73.60 | 75.10 | 182,500 | 1.50 | | 2.04 | |
| QNST | Quinstreet Inc | 13.04 | 12.82 | 12.84 | 269,900 | -0.13 | | 1.00 | |
| QQEW | Nasdaq-100 EW Index Fund FT | 60.31 | 59.81 | 60.30 | 51,000 | 0.11 | | 0.18 | |
| QQQ | Nasdaq QQQ ETF | 169.9 | 167.8 | 169.6 | 27,696,500 | -0.1 | | 0.03 | |
| QQQC | G-X Nasdaq China Tech ETF | 30.25 | 29.84 | 30.01 | 3,100 | -0.22 | | 0.73 | |
| QQQX | Nuveen Nasdaq 100 | 27.11 | 26.80 | 27.11 | 85,100 | 0.14 | | 0.52 | |
| QQXT | Nasdaq-100 Ex-Tech Sector Indexsm Fund | 49.03 | 48.76 | 49.03 | 3,000 | 0.16 | | 0.33 | |
| QRHC | Quest Resource | 2.060 | 1.950 | 2.010 | 3,800 | 0.000 |  | 0.00 | |
| QRTEA | Qurate Retail Group | 21.59 | 21.09 | 21.13 | 3,455,200 | -0.30 | | 1.40 | |
| QRTEB | Liberty Int Qvc Sr B | 21.62 | 21.62 | 21.62 | 200 | -0.77 | | 3.44 | |
| QRVO | Qorvo Inc | 81.94 | 80.50 | 81.23 | 1,370,100 | -0.07 | | 0.09 | |
| QSII | Quality Systems Inc | 15.14 | 14.58 | 15.05 | 402,200 | 0.41 | | 2.80 | |
| QTEC | Nasdaq-100 Technology Index Fund FT | 79.11 | 78.08 | 78.91 | 125,500 | 0.02 | | 0.03 | |
| QTNA | Quantenna Communications Inc | 16.21 | 15.72 | 15.92 | 502,700 | 0.01 | | 0.06 | |
| QTNT | Quotient Limited Ord | 6.770 | 6.270 | 6.540 | 502,600 | -0.170 | | 2.53 | |
| QTRH | Quarterhill Inc | 1.370 | 1.300 | 1.310 | 126,800 | -0.060 | | 4.38 | |
| QTRX | Quanterix Corporation | 20.83 | 19.91 | 20.18 | 44,100 | -0.27 | | 1.32 | |
| QUIK | Quicklogic Corp | 1.130 | 1.050 | 1.080 | 5,505,600 | -0.480 | | 30.77 | |
| QUMU | Qumu Corp | 2.500 | 2.400 | 2.440 | 8,500 | -0.050 | | 2.01 | |
| QURE | Uniqure N.V. | 35.35 | 33.13 | 34.84 | 479,900 | 1.99 | | 6.04 | |
| QYLD | Recon Nq-100 Covered Call ETF | 24.52 | 24.37 | 24.48 | 116,600 | -0.05 | | 0.20 | |