| OCG | Outcrop Silver & Gold Corp | 0.6300 | 0.5500 | 0.6200 | 1.73M | 0.0600 | | 10.71 | |
| OGD | Orbit Garant Drilling Inc | 1.790 | 1.550 | 1.700 | 174.7K | 0.130 | | 8.28 | |
| OILD | Savvyshort Geared Crude Oil ETF | 15.14 | 15.14 | 15.14 | 100 | 0.23 | | 1.54 | |
| OILU | Savvylong Geared Crude Oil ETF | 17.54 | 17.18 | 17.18 | 17.4K | -0.76 | | 4.24 | |
| OILY | Evolve Canadian Energy Enhanced Yield IN | 9.800 | 9.690 | 9.730 | 3.3K | -0.040 | | 0.41 | |
| OLY | Olympia Financial Group Inc | 114.9 | 113.5 | 113.5 | 2.2K | -1.2 | | 1.06 | |
| OM | Osisko Metals Incorporated | 0.9100 | 0.8500 | 0.8900 | 1.39M | 0.0400 | | 4.71 | |
| ONEB | CI One North American Core Plus Bond ETF | 49.54 | 49.54 | 49.54 | 108 | 0.05 | | 0.10 | |
| ONEC | Accelerate Onechoice Alt Multi-Asset | 25.97 | 25.97 | 25.97 | 100 | -0.01 | | 0.04 | |
| OR | Osisko Gold Royalties Ltd | 62.70 | 59.64 | 62.40 | 442.8K | 2.51 | | 4.19 | |
| OXY | Occidental Petroleum Corporation | 18.25 | 17.88 | 18.25 | 6.5K | -0.09 | | 0.49 | |