| Q | Quintiles Transitional Holdings | 135.2 | 128.7 | 133.5 | 1.66M | 2.3 | | 1.73 | |
| QLEP | Quantum Leap Acquisition Corp | 10.000 | 9.980 | 9.980 | 500 | -0.010 | | 0.10 | |
| QRE.U | Quasaredge Acquisition Corp Unit | 10.17 | 10.12 | 10.17 | 12.6K | 0.05 | | 0.49 | |
| QSR | Restaurant Brands International | 74.11 | 72.50 | 72.91 | 1.47M | -1.11 | | 1.50 | |