| Q | Quintiles Transitional Holdings | 123.8 | 115.9 | 118.4 | 1.03M | -4.3 | | 3.53 | |
| QLEP | Quantum Leap Acquisition Corp | 10.08 | 10.08 | 10.08 | 100 | -0.01 | | 0.10 | |
| QRE- | Quasaredge Acquisition Corp Ord [Qredr] | 0.1900 | 0.1900 | 0.1900 | 3.3K | -0.0083 | | 4.19 | |
| QRED | Quasaredge Acquisition Corp | 10.13 | 10.13 | 10.13 | 100 | 0.01 | | 0.05 | |
| QSR | Restaurant Brands International | 76.59 | 75.20 | 75.43 | 1.25M | -0.07 | | 0.09 | |