| Q | Quintiles Transitional Holdings | 147.9 | 140.0 | 143.0 | 520.2K | 2.0 | | 1.41 | |
| QLE.U | Quantum Leap Acquisition Corp Units | 10.05 | 10.01 | 10.03 | 135.4K | 0.01 | | 0.05 | |
| QLEP | Quantum Leap Acquisition Corp | 10.020 | 9.930 | 9.970 | 5.2K | -0.010 | | 0.10 | |
| QRE- | Quasaredge Acquisition Corp Ord [Qredr] | 0.3000 | 0.2920 | 0.3000 | 16.6K | 0.0299 | | 11.07 | |
| QSR | Restaurant Brands International | 76.42 | 74.62 | 75.11 | 1.23M | -0.46 | | 0.61 | |