| Q | Quintiles Transitional Holdings | 120.0 | 115.1 | 115.4 | 799.6K | -4.2 | | 3.54 | |
| 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 | |
| QSR | Restaurant Brands International | 75.35 | 74.19 | 74.80 | 1.74M | 0.70 | | 0.94 | |