| Code | Name | High | Low | Close | Volume | Change | |
|---|
| QABA | Qtec First Trust ETF | 51.70 | 51.24 | 51.42 | 10,406 | 0.80 |  | 1.58 |   |
| QADA | Qad Inc | 31.45 | 30.90 | 31.25 | 9,147 | 0.25 | | 0.81 | |
| QADB | Q A D Inc Cl B | 25.21 | 25.21 | 25.21 | 474 | -0.29 |  | 1.14 | |
| QAT | Ishares Qatar Capped ETF | 18.00 | 17.83 | 17.97 | 18,351 | 0.03 | | 0.17 | |
| QBAK | Qualstar Corp | 11.00 | 9.68 | 10.80 | 211,630 | 1.35 | | 14.29 | |
| QCLN | Nasdaq Clean Edge Green Energy Index | 19.20 | 19.04 | 19.09 | 11,865 | -0.07 | | 0.37 | |
| QCOM | Qualcomm Inc | 53.65 | 53.07 | 53.38 | 4,201,971 | 0.16 | | 0.30 | |
| QCRH | Qcr Holdings Inc | 47.70 | 46.55 | 46.90 | 35,240 | 0.60 | | 1.30 | |
| QDEL | Quidel Cp | 38.07 | 37.35 | 37.66 | 232,774 | -0.16 | | 0.42 | |
| QGEN | Qiagen N.V. | 34.67 | 34.18 | 34.23 | 347,269 | -0.40 | | 1.16 | |
| QINC | Rba Quality Income ETF FT | 24.40 | 24.30 | 24.32 | 726 | 0.09 | | 0.37 | |
| QIWI | Qiwi Plc ADR | 20.56 | 20.26 | 20.50 | 80,893 | 0.09 | | 0.44 | |
| QLC | Flexshares US Quality Largecap | 30.47 | 30.35 | 30.47 | 1,724 | 0.26 | | 0.86 | |
| QLYS | Qualys Inc | 42.75 | 42.00 | 42.72 | 68,328 | 0.67 | | 1.59 | |
| QNST | Quinstreet Inc | 3.940 | 3.770 | 3.880 | 12,810 | 0.120 | | 3.19 | |
| QPAC | Quinpario Acq2 Com | 8.800 | 8.550 | 8.610 | 4,300 | -0.300 | | 3.37 | |
| QPACW | Quinpario Acq2 Wrnt | 0.4800 | 0.4200 | 0.4400 | 1,863,600 | 0.0100 | | 2.33 | |
| QQEW | Nasdaq-100 EW Index Fund FT | 55.28 | 55.09 | 55.25 | 40,213 | -0.01 | | 0.02 | |
| QQQ | Nasdaq QQQ ETF | 144.6 | 144.0 | 144.6 | 16,476,694 | -0.2 | | 0.12 | |
| QQQC | G-X Nasdaq China Tech ETF | 27.04 | 26.83 | 27.04 | 2,491 | -0.08 | | 0.29 | |
| QQQX | Nuveen Nasdaq 100 | 22.70 | 22.59 | 22.65 | 53,364 | 0.00 |  | 0.00 | |
| QQXT | Nasdaq-100 Ex-Tech Sector Indexsm Fund | 47.43 | 47.29 | 47.29 | 1,119 | 0.00 | | 0.00 | |
| QRHC | Quest Resource Cmn | 1.990 | 1.730 | 1.800 | 63,451 | -0.150 | | 7.69 | |
| QRVO | Qorvo Inc | 69.73 | 68.41 | 69.33 | 478,553 | 0.16 | | 0.23 | |
| QSII | Quality Systems Inc | 17.74 | 17.36 | 17.66 | 302,008 | 0.30 | | 1.73 | |
| QTEC | Nasdaq-100 Technology Index Fund FT | 65.60 | 64.99 | 65.59 | 69,377 | -0.28 | | 0.43 | |
| QTNA | Quantenna Communications Inc | 20.00 | 19.48 | 19.71 | 146,415 | -0.02 | | 0.10 | |
| QTNT | Quotient Limited Ord | 6.100 | 5.750 | 5.770 | 73,887 | -0.210 | | 3.51 | |
| QTRH | Quarterhill Inc. | 1.470 | 1.420 | 1.460 | 30,153 | 0.050 | | 3.55 | |
| QUIK | Quicklogic Corp | 1.560 | 1.470 | 1.520 | 146,783 | 0.050 | | 3.40 | |
| QUMU | Qumu Corporation | 2.780 | 2.670 | 2.720 | 10,646 | 0.070 | | 2.64 | |
| QURE | Uniqure N.V. | 9.000 | 8.250 | 8.570 | 197,548 | -0.400 | | 4.46 | |
| QVCA | Liberty Int Qvc Sr A | 24.75 | 24.07 | 24.66 | 1,484,832 | 0.58 | | 2.41 | |
| QVCB | Liberty Int Qvc Sr B | 24.64 | 24.45 | 24.63 | 3,005 | 0.28 | | 1.15 | |
| QYLD | Recon Nq-100 Covered Call ETF | 24.11 | 23.97 | 23.99 | 11,970 | 0.01 | | 0.04 | |