| Code | Name | High | Low | Close | Volume | Change | |
|---|
| OCG | Outcrop Gold Corp | 0.2400 | 0.1300 | 0.2000 | 1,033,842 | 0.0750 |  | 60.00 |   |
| OCN | Oceanus Resources Corp | 0.0750 | 0.0750 | 0.0750 | 6,000 | 0.0100 | | 15.38 | |
| OCO | Oroco Resource Corp | 0.3600 | 0.3500 | 0.3600 | 127,500 | 0.0000 |  | 0.00 | |
| ODX.H | Odyssey Resources Ltd | 0.0500 | 0.0500 | 0.0500 | 250,000 | 0.0300 | | 150.00 | |
| OEC | Oracle Energy Corp | 0.0200 | 0.0150 | 0.0150 | 150,000 | -0.0050 |  | 25.00 | |
| OEE | Memex Inc | 0.0450 | 0.0400 | 0.0400 | 16,000 | -0.0050 | | 11.11 | |
| OG | Organic Garage Ltd | 0.1050 | 0.0950 | 0.0950 | 15,400 | -0.0050 | | 5.00 | |
| OGO | Organto Foods Inc | 0.0550 | 0.0550 | 0.0550 | 4,000 | -0.0050 | | 8.33 | |
| OIC | Origin Gold Corporation | 0.1400 | 0.1350 | 0.1400 | 1,500 | 0.0000 | | 0.00 | |
| OIII | O3 Mining Inc | 2.500 | 2.380 | 2.490 | 37,901 | 0.070 | | 2.89 | |
| OLV | Olivut Resources Ltd | 0.0450 | 0.0450 | 0.0450 | 1,000 | 0.0000 | | 0.00 | |
| OM | Osisko Metals Incorporated | 0.4900 | 0.4750 | 0.4750 | 100,851 | -0.0150 | | 3.06 | |
| OML | Omni-Lite Industries Canada Inc | 0.9500 | 0.9500 | 0.9500 | 500 | -0.0100 | | 1.04 | |
| OMM | Omineca Mining and Metals Ltd | 0.1200 | 0.1200 | 0.1200 | 3,000 | 0.0000 | | 0.00 | |
| ONE | 01 Communique Laboratory Inc | 0.1700 | 0.1600 | 0.1700 | 285,135 | 0.0050 | | 3.03 | |
| ONV | Oronova Energy Inc | 0.0800 | 0.0600 | 0.0650 | 64,713 | -0.0050 | | 7.14 | |
| ONV.H | Oronova Energy Inc | 0.0650 | 0.0650 | 0.0650 | 5,000 | 0.0050 | | 8.33 | |
| OOO | Otis Gold Corp | 0.1300 | 0.1150 | 0.1250 | 232,000 | 0.0100 | | 8.70 | |
| OOR | Opus One Resources Inc | 0.0500 | 0.0450 | 0.0500 | 108,000 | 0.0000 | | 0.00 | |
| OPV | Optimum Ventures Ltd | 0.2050 | 0.2050 | 0.2050 | 3,000 | 0.0550 | | 36.67 | |
| OPW | Opawica Explorations Inc | 0.0650 | 0.0650 | 0.0650 | 2,500 | -0.0350 | | 35.00 | |
| ORC.A | Orca Exploration Group Inc. Cl A | 11.25 | 11.25 | 11.25 | 104 | 1.25 | | 12.50 | |
| ORC.B | Orca Exploration Group Inc Cl B | 6.300 | 6.210 | 6.250 | 8,298 | -0.050 | | 0.79 | |
| ORE | Orezone Gold Corp | 0.5000 | 0.4700 | 0.4850 | 1,383,999 | 0.0250 | | 5.43 | |
| ORE.WT | Orezone Gold Corporation Wts | 0.1000 | 0.0900 | 0.1000 | 392,500 | 0.0000 | | 0.00 | |
| ORG | Orca Gold Inc | 0.3400 | 0.3250 | 0.3250 | 882,216 | -0.0050 | | 1.52 | |
| ORM | Orford Mining Corporation | 0.0350 | 0.0350 | 0.0350 | 24,000 | 0.0000 | | 0.00 | |
| ORO | New Oroperu Resources Inc | 0.7900 | 0.7900 | 0.7900 | 38,500 | 0.0000 | | 0.00 | |
| ORS | Orestone Mining Corp | 0.1000 | 0.1000 | 0.1000 | 74,000 | 0.0000 | | 0.00 | |
| ORX | Orefinders Resources Inc | 0.0500 | 0.0500 | 0.0500 | 167,000 | 0.0000 | | 0.00 | |
| OS | Osprey Gold Development Ltd | 0.0700 | 0.0650 | 0.0650 | 275,508 | 0.0000 | | 0.00 | |
| OSI | Osino Resources Corp | 0.7600 | 0.7000 | 0.7600 | 506,211 | 0.0200 | | 2.70 | |
| OSS | Onesoft Solutions Inc | 0.6100 | 0.5900 | 0.6000 | 63,428 | -0.0100 | | 1.64 | |
| OSU | Orsu Metals Corp | 0.2100 | 0.2100 | 0.2100 | 1,027 | 0.0000 | | 0.00 | |
| OTSO | Otso Gold Corp. | 0.0750 | 0.0750 | 0.0750 | 9,520 | 0.0050 | | 7.14 | |
| OVT | Oculus Visiontech Inc | 0.1950 | 0.1950 | 0.1950 | 4,000 | -0.0150 | | 7.14 | |
| OYL | Cgx Energy Inc | 0.7100 | 0.6500 | 0.6800 | 48,000 | 0.0000 | | 0.00 | |