| OGD | Orbit Garant Drilling Inc | 1.800 | 1.570 | 1.670 | 100.5K | -0.030 | | 1.76 | |
| OILD | Savvyshort Geared Crude Oil ETF | 14.34 | 14.34 | 14.34 | 100 | -0.80 | | 5.28 | |
| OILU | Savvylong Geared Crude Oil ETF | 18.27 | 18.21 | 18.22 | 9.4K | 1.04 | | 6.05 | |
| OILY | Evolve Canadian Energy Enhanced Yield IN | 9.870 | 9.820 | 9.850 | 11.0K | 0.120 | | 1.23 | |
| OLY | Olympia Financial Group Inc | 117.0 | 115.5 | 115.6 | 1.0K | 2.1 | | 1.81 | |
| OM | Osisko Metals Incorporated | 0.9900 | 0.9000 | 0.9900 | 3.32M | 0.1000 | | 11.24 | |
| ONEB | CI One North American Core Plus Bond ETF | 49.50 | 49.45 | 49.50 | 7.0K | -0.04 | | 0.08 | |
| ONEC | Accelerate Onechoice Alt Multi-Asset | 26.11 | 26.11 | 26.11 | 247 | 0.14 | | 0.54 | |
| OR | Osisko Gold Royalties Ltd | 63.13 | 61.37 | 61.93 | 442.1K | -0.47 | | 0.75 | |
| OXY | Occidental Petroleum Corporation | 18.72 | 18.50 | 18.72 | 11.1K | 0.47 | | 2.58 | |