| OCO.WT | OROCO RESOURCES CORP WT EX 12SE | 0.0900 | 0.0750 | 0.0750 | 43.5K | -0.0150 | | 16.67 | |
| OML | Omni-Lite Industries Canada Inc | 3.000 | 2.880 | 2.880 | 1.8K | -0.110 | | 3.68 | |
| OMM | Omineca Mining and Metals Ltd | 0.0450 | 0.0400 | 0.0450 | 267.0K | 0.0050 | | 12.50 | |
| ORC.B | Orca Energy Group Inc Cl B | 0.9000 | 0.8600 | 0.8600 | 9.2K | -0.0100 | | 1.15 | |
| OTC | Ocumetics Technology Corp | 0.4000 | 0.3950 | 0.4000 | 19.1K | 0.0100 | | 2.56 | |