| OGD | Orbit Garant Drilling Inc | 1.560 | 1.450 | 1.470 | 202.1K | -0.260 | | 15.03 | |
| OILY | Evolve Canadian Energy Enhanced Yield IN | 9.720 | 9.510 | 9.540 | 2.3K | -0.080 | | 0.83 | |
| OLY | Olympia Financial Group Inc | 122.3 | 121.6 | 121.6 | 557 | -0.8 | | 0.65 | |
| OM | Osisko Metals Incorporated | 0.4950 | 0.4750 | 0.4850 | 1.07M | -0.0150 | | 3.00 | |
| ONEB | CI One North American Core Plus Bond ETF | 49.83 | 49.81 | 49.83 | 300 | -0.02 | | 0.04 | |
| ONEC | Accelerate Onechoice Alt Multi-Asset | 25.34 | 25.31 | 25.31 | 200 | -0.17 | | 0.67 | |
| OR | Osisko Gold Royalties Ltd | 46.76 | 45.40 | 45.89 | 333.6K | -0.84 | | 1.80 | |