| Q | Quintiles Transitional Holdings | 167.9 | 167.9 | 167.9 | 100 | 3.3 | | 2.00 | |
| QLE.U | Quantum Leap Acquisition Corp Units | 10.020 | 10.000 | 10.000 | 59.6K | -0.010 | | 0.10 | |
| QRE.U | Quasaredge Acquisition Corp Unit | 10.22 | 9.98 | 10.11 | 4.3K | 0.00 | | 0.00 | |
| QRED | Quasaredge Acquisition Corp | 9.950 | 9.950 | 9.950 | 136 | 0.040 | | 0.40 | |
| QSR | Restaurant Brands International | 76.75 | 75.11 | 75.41 | 1.36M | 0.04 | | 0.05 | |