| Q | Quintiles Transitional Holdings | 123.9 | 119.6 | 121.3 | 238.4K | 1.3 | | 1.04 | |
| QLEP | Quantum Leap Acquisition Corp | 10.01 | 10.01 | 10.01 | 100 | -0.04 | | 0.40 | |
| QRE- | Quasaredge Acquisition Corp Ord [Qredr] | 0.2417 | 0.2417 | 0.2417 | 600 | -0.0182 | | 7.00 | |
| QRE.U | Quasaredge Acquisition Corp Unit | 10.28 | 10.28 | 10.28 | 500 | 0.11 | | 1.08 | |
| QSR | Restaurant Brands International | 73.24 | 72.09 | 72.55 | 433.9K | -0.33 | | 0.45 | |