| Oil & Natural Gas Corporation Limited (ONGC) NSE - National Stock Exchange of India | |
| Oriental Bank of Commerce (ORIENTBANK) NSE - National Stock Exchange of India | |
| Oracle Corporation (ORCL) NYSE - The New York Stock Exchange | |
| Oracle Financial Services Software Ltd. (OFSS) NSE - National Stock Exchange of India | |
| Oil India Limited (OIL) NSE - National Stock Exchange of India | |
| Oversea-Chinese Banking Corp. Limited (O39) SGX - Singapore Exchange | |
| Ofs Technologies Ltd (OFSTECH) BSE - Bombay Stock Exchange | |
| Occidental Petroleum Corporation (OXY) NYSE - The New York Stock Exchange | |
| Oswal Agro Mills Limited (OSWALAGRO) NSE - National Stock Exchange of India | |
| Oil & Natural Gas Corporation Limited (ONGC) BSE - Bombay Stock Exchange | |
| Oberoi Realty Limited. (OBEROIRLTY) NSE - National Stock Exchange of India | |
| Orient Paper & Industries Limited (ORIENTPPR) NSE - National Stock Exchange of India | |
| Overstock.com Inc (OSTK) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Omega Healthcare Investors Inc (OHI) NYSE - The New York Stock Exchange | |
| Oriental Carbon and Chemicals Ltd (ORIENTCQ) BSE - Bombay Stock Exchange | |