| Code | Name | High | Low | Close | Volume | Change | |
|---|
| OCG | Outcrop Gold Corp | 0.1900 | 0.1800 | 0.1800 | 690,142 | -0.0100 |  | 5.26 |   |
| OCN | Oceanus Resources Corp | 0.0800 | 0.0800 | 0.0800 | 1,000 | 0.0000 |  | 0.00 | |
| OCO | Oroco Resource Corp | 0.3150 | 0.3050 | 0.3050 | 83,599 | -0.0100 | | 3.17 | |
| ODX.H | Odyssey Resources Ltd | 0.0500 | 0.0500 | 0.0500 | 250,000 | 0.0300 |  | 150.00 | |
| OEC | Oracle Energy Corp | 0.0200 | 0.0200 | 0.0200 | 125,235 | 0.0000 | | 0.00 | |
| OEE | Memex Inc | 0.0400 | 0.0400 | 0.0400 | 25,950 | 0.0000 | | 0.00 | |
| OG | Organic Garage Ltd | 0.1150 | 0.0950 | 0.1150 | 30,000 | 0.0200 | | 21.05 | |
| OGO | Organto Foods Inc | 0.0600 | 0.0550 | 0.0600 | 18,208 | 0.0000 | | 0.00 | |
| OIC | Origin Gold Corporation | 0.1350 | 0.1300 | 0.1300 | 32,500 | -0.0100 | | 7.14 | |
| OIII | O3 Mining Inc | 2.390 | 2.060 | 2.300 | 75,585 | -0.080 | | 3.36 | |
| OLV | Olivut Resources Ltd | 0.0350 | 0.0350 | 0.0350 | 1,700 | 0.0000 | | 0.00 | |
| OM | Osisko Metals Incorporated | 0.4350 | 0.4250 | 0.4350 | 176,870 | -0.0100 | | 2.25 | |
| OML | Omni-Lite Industries Canada Inc | 0.9500 | 0.9400 | 0.9500 | 11,000 | -0.0200 | | 2.06 | |
| OMM | Omineca Mining and Metals Ltd | 0.1200 | 0.1200 | 0.1200 | 36,000 | 0.0000 | | 0.00 | |
| ONE | 01 Communique Laboratory Inc | 0.1850 | 0.1700 | 0.1750 | 161,909 | 0.0000 | | 0.00 | |
| 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 | 0.1400 | 0.1250 | 0.1250 | 170,525 | -0.0100 | | 7.41 | |
| 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 | 19.25 | 19.25 | 19.25 | 100 | 8.00 | | 71.11 | |
| ORC.B | Orca Exploration Group Inc Cl B | 6.300 | 6.190 | 6.200 | 12,358 | -0.030 | | 0.48 | |
| ORE | Orezone Gold Corp | 0.4700 | 0.4500 | 0.4550 | 669,800 | -0.0100 | | 2.15 | |
| ORE.WT | Orezone Gold Corporation Wts | 0.1000 | 0.0700 | 0.1000 | 147,500 | 0.0000 | | 0.00 | |
| ORG | Orca Gold Inc | 0.3400 | 0.3350 | 0.3400 | 51,450 | -0.0050 | | 1.45 | |
| ORM | Orford Mining Corporation | 0.0300 | 0.0300 | 0.0300 | 309,000 | -0.0050 | | 14.29 | |
| ORO | New Oroperu Resources Inc | 0.7900 | 0.6700 | 0.7000 | 67,900 | -0.0900 | | 11.39 | |
| ORS | Orestone Mining Corp | 0.1000 | 0.0650 | 0.0900 | 53,000 | 0.0000 | | 0.00 | |
| ORX | Orefinders Resources Inc | 0.0600 | 0.0600 | 0.0600 | 26,000 | 0.0000 | | 0.00 | |
| OS | Osprey Gold Development Ltd | 0.0550 | 0.0500 | 0.0500 | 1,059,050 | -0.0050 | | 9.09 | |
| OSI | Osino Resources Corp | 0.7900 | 0.7600 | 0.7700 | 39,800 | 0.0100 | | 1.32 | |
| OSS | Onesoft Solutions Inc | 0.6000 | 0.5300 | 0.5400 | 4,208,517 | -0.0600 | | 10.00 | |
| OSU | Orsu Metals Corp | 0.2150 | 0.2150 | 0.2150 | 2,000 | 0.0050 | | 2.38 | |
| OTSO | Otso Gold Corp. | 0.0750 | 0.0650 | 0.0650 | 144,618 | 0.0000 | | 0.00 | |
| OVT | Oculus Visiontech Inc | 0.2150 | 0.1800 | 0.2150 | 197,819 | 0.0300 | | 16.22 | |
| OYL | Cgx Energy Inc | 0.6600 | 0.5800 | 0.5800 | 6,070 | 0.0000 | | 0.00 | |