| OCO.WT | OROCO RESOURCES CORP WT EX 12SE | 0.1500 | 0.1500 | 0.1500 | 10.0K | -0.0100 | | 6.25 | |
| ODV.WT.U | Osisko Development Corp Wts USD | 0.0400 | 0.0350 | 0.0350 | 10.0K | -0.2400 | | 87.27 | |
| OML | Omni-Lite Industries Canada Inc | 1.470 | 1.300 | 1.470 | 8.6K | 0.140 | | 10.53 | |
| OMR.H | Ord Mountain Resources Corp | 0.0900 | 0.0800 | 0.0800 | 262.0K | 0.0100 | | 14.29 | |
| ORC.B | Orca Energy Group Inc Cl B | 3.440 | 3.350 | 3.350 | 6.0K | -0.100 | | 2.90 | |
| ORCL | Oracle Commodity Holding Corp | 0.0450 | 0.0450 | 0.0450 | 16.9K | -0.0050 | | 10.00 | |
| OTC | Ocumetics Technology Corp | 0.4300 | 0.4200 | 0.4200 | 15.0K | 0.0100 | | 2.44 | |