| Q | Quintiles Transitional Holdings | 158.0 | 148.3 | 149.7 | 393.7K | -7.6 | | 4.81 | |
| QLE.U | Quantum Leap Acquisition Corp Units | 10.03 | 9.99 | 10.01 | 3.1K | 0.01 | | 0.06 | |
| QRED | Quasaredge Acquisition Corp | 9.910 | 9.900 | 9.910 | 9.1K | -0.010 | | 0.10 | |
| QSR | Restaurant Brands International | 76.46 | 74.85 | 75.04 | 289.3K | -0.80 | | 1.05 | |