| Q | Quintiles Transitional Holdings | 127.9 | 124.4 | 125.4 | 395.2K | -1.2 | | 0.96 | |
| QLEP | Quantum Leap Acquisition Corp | 10.10 | 10.00 | 10.03 | 9.6K | 0.01 | | 0.10 | |
| QRE- | Quasaredge Acquisition Corp Ord [Qredr] | 0.2605 | 0.2600 | 0.2600 | 1.1K | 0.0099 | | 3.96 | |
| QRED | Quasaredge Acquisition Corp | 11.69 | 10.03 | 10.03 | 45.7K | 0.01 | | 0.10 | |
| QSR | Restaurant Brands International | 81.40 | 79.79 | 79.86 | 408.5K | -1.70 | | 2.08 | |