| Q | Quintiles Transitional Holdings | 120.9 | 118.2 | 119.0 | 691.8K | 3.7 | | 3.19 | |
| QLEP | Quantum Leap Acquisition Corp | 10.06 | 10.05 | 10.05 | 3.9K | -0.01 | | 0.10 | |
| QRE- | Quasaredge Acquisition Corp Ord [Qredr] | 0.2250 | 0.1801 | 0.1801 | 700 | -0.0299 | | 14.24 | |
| QRE.U | Quasaredge Acquisition Corp Unit | 10.22 | 10.22 | 10.22 | 3.5K | -0.05 | | 0.49 | |
| QRED | Quasaredge Acquisition Corp | 10.08 | 10.08 | 10.08 | 300 | 0.01 | | 0.10 | |
| QSR | Restaurant Brands International | 74.64 | 73.77 | 74.34 | 1.0M | -0.47 | | 0.63 | |