| Q | Quintiles Transitional Holdings | 121.1 | 120.9 | 121.1 | 200 | -1.6 | | 1.33 | |
| QLEP | Quantum Leap Acquisition Corp | 10.09 | 10.09 | 10.09 | 6.9K | 0.01 | | 0.10 | |
| QRE- | Quasaredge Acquisition Corp Ord [Qredr] | 0.1983 | 0.1983 | 0.1983 | 100 | -0.0217 | | 9.86 | |
| QRED | Quasaredge Acquisition Corp | 10.12 | 10.11 | 10.12 | 6.6K | 0.01 | | 0.10 | |
| QSR | Restaurant Brands International | 77.26 | 75.11 | 75.50 | 2.0M | -1.18 | | 1.54 | |