| Q | Quintiles Transitional Holdings | 127.2 | 124.7 | 126.4 | 865.5K | 3.1 | | 2.50 | |
| QLEP | Quantum Leap Acquisition Corp | 10.05 | 10.05 | 10.05 | 432 | 0.02 | | 0.20 | |
| QRE.U | Quasaredge Acquisition Corp Unit | 10.28 | 10.28 | 10.28 | 500 | 0.11 | | 1.08 | |
| QSR | Restaurant Brands International | 77.26 | 76.03 | 76.96 | 3.21M | 0.47 | | 0.61 | |