O
| Stock symbol | Company | Notes | External link |
|---|---|---|---|
| OAO | Oando plc | Nigeria based oil, natural gas, refining, energy | oandoplc.com |
| OAS | Oasis Crescent Property Fund | Sharia-principled real estate investment company with offices in Egypt, Ireland and South Africa | oasiscrescent.com |
| OCE | Oceana Group Limited | commercial fishing, fish processing; potatoes; cold storage for fish, fruit | oceana.co.za |
| OCT | Octodec Investments Limited | real estate | |
| OML | Old Mutual plc | financial services | oldmutual.com |
| OMN | Omnia Holdings Limited | chemicals, specialty chemicals, fertilizer, bulk mining, explosives | omnia.co.za |
| OLG | Onelogix Group Limited | logistics | |
| OPT | Optimum Coal Holdings Ltd | coal exploration, mining | optimumcoal.com |
Read more about this topic: List Of Companies Traded On The JSE