| Q | Quintiles Transitional Holdings | 145.5 | 137.3 | 139.0 | 269.7K | -7.6 | | 5.20 | |
| QLE.U | Quantum Leap Acquisition Corp Units | 10.05 | 10.01 | 10.03 | 135.4K | 0.01 | | 0.05 | |
| QRED | Quasaredge Acquisition Corp | 9.980 | 9.940 | 9.980 | 970 | 0.010 | | 0.10 | |
| QSR | Restaurant Brands International | 75.43 | 74.13 | 75.40 | 122.4K | 2.15 | | 2.94 | |