| Q | Quintiles Transitional Holdings | 170.0 | 157.0 | 159.0 | 899.6K | -5.5 | | 3.37 | |
| QLE.U | Quantum Leap Acquisition Corp Units | 10.04 | 10.00 | 10.00 | 1.5K | 0.00 | | 0.00 | |
| QRE.U | Quasaredge Acquisition Corp Unit | 10.10 | 10.10 | 10.10 | 2.1K | -0.01 | | 0.10 | |
| QRED | Quasaredge Acquisition Corp | 9.940 | 9.940 | 9.940 | 500 | -0.010 | | 0.10 | |
| QSR | Restaurant Brands International | 75.99 | 74.61 | 74.74 | 1.36M | -0.70 | | 0.93 | |