| OCG | Outcrop Silver & Gold Corp | 0.4875 | 0.4400 | 0.4800 | 2.3M | -0.0300 | | 5.88 | |
| OGD | Orbit Garant Drilling Inc | 1.790 | 1.600 | 1.700 | 175.6K | -0.050 | | 2.86 | |
| OILD | Savvyshort Geared Crude Oil ETF | 13.25 | 13.25 | 13.25 | 111 | -1.22 | | 8.43 | |
| OILU | Savvylong Geared Crude Oil ETF | 20.83 | 20.04 | 20.83 | 2.7K | 0.33 | | 1.61 | |
| OILY | Evolve Canadian Energy Enhanced Yield IN | 10.030 | 9.810 | 9.980 | 36.9K | -0.200 | | 1.96 | |
| OLY | Olympia Financial Group Inc | 115.6 | 114.0 | 115.6 | 1.0K | 1.3 | | 1.11 | |
| OM | Osisko Metals Incorporated | 1.080 | 1.000 | 1.030 | 2.31M | -0.100 | | 8.85 | |
| ONEB | CI One North American Core Plus Bond ETF | 49.40 | 49.38 | 49.40 | 368 | -0.02 | | 0.04 | |
| OR | Osisko Gold Royalties Ltd | 59.60 | 53.25 | 53.69 | 846.5K | -7.96 | | 12.91 | |
| OXY | Occidental Petroleum Corporation | 19.17 | 18.77 | 19.17 | 9.8K | -0.01 | | 0.05 | |