| Q | Quintiles Transitional Holdings | 124.6 | 120.4 | 124.2 | 454.2K | 3.7 | | 3.07 | |
| QLEP | Quantum Leap Acquisition Corp | 10.020 | 9.990 | 9.996 | 750 | 0.026 | | 0.26 | |
| QRE.U | Quasaredge Acquisition Corp Unit | 10.28 | 10.28 | 10.28 | 500 | 0.11 | | 1.08 | |
| QRED | Quasaredge Acquisition Corp | 10.05 | 10.04 | 10.04 | 8.9K | -0.01 | | 0.10 | |
| QSR | Restaurant Brands International | 80.34 | 78.23 | 78.45 | 754.0K | -1.72 | | 2.15 | |