| Q | Quintiles Transitional Holdings | 166.0 | 155.5 | 158.0 | 738.0K | -9.3 | | 5.55 | |
| QLE.U | Quantum Leap Acquisition Corp Units | 10.05 | 10.01 | 10.03 | 135.4K | 0.01 | | 0.05 | |
| QRE.U | Quasaredge Acquisition Corp Unit | 10.12 | 10.12 | 10.12 | 200 | -0.08 | | 0.78 | |
| QRED | Quasaredge Acquisition Corp | 9.930 | 9.930 | 9.930 | 111 | -0.020 | | 0.20 | |
| QSR | Restaurant Brands International | 74.42 | 72.93 | 74.35 | 1.66M | 1.11 | | 1.52 | |