| Q | Quintiles Transitional Holdings | 144.0 | 141.1 | 142.1 | 879.8K | 3.8 | | 2.78 | |
| QLEP | Quantum Leap Acquisition Corp | 10.01 | 10.00 | 10.01 | 408 | -0.01 | | 0.05 | |
| QRE- | Quasaredge Acquisition Corp Ord [Qredr] | 0.2999 | 0.2750 | 0.2998 | 900 | 0.0138 | | 4.83 | |
| QRE.U | Quasaredge Acquisition Corp Unit | 10.17 | 10.12 | 10.17 | 12.6K | 0.05 | | 0.49 | |
| QRED | Quasaredge Acquisition Corp | 10.02 | 10.00 | 10.01 | 29.6K | 0.00 | | 0.00 | |
| QSR | Restaurant Brands International | 75.17 | 73.24 | 74.89 | 1.02M | 1.57 | | 2.14 | |