| OCB | OCB BHD | 82 | 0.795 | 0.00 - 0.00 | 0.795 | 0.00 | 0.00% | 0 |
| OCK | OCK GROUP BHD | 501 | 0.47 | 0.465 - 0.475 | 0.475 | +0.005 | 1.06% | 119,000 |
| OCNCASH | OCEANCASH PACIFIC BHD | 115 | 0.44 | 0.00 - 0.00 | 0.44 | 0.00 | 0.00% | 0 |
| OCR | OCR GROUP BHD | 88 | 0.15 | 0.15 - 0.15 | 0.15 | -0.005 | 3.23% | 10,000 |
| OFI | ORIENTAL FOOD INDUSTRIES HOLDINGS BHD | 222 | 0.925 | 0.925 - 0.925 | 0.925 | -0.005 | 0.54% | 63,200 |
| OIB | ORIENTAL INTEREST BHD | 400 | 0.86 | 0.00 - 0.00 | 0.86 | 0.00 | 0.00% | 0 |
| OKA | OKA CORP BHD | 193 | 0.785 | 0.00 - 0.00 | 0.785 | 0.00 | 0.00% | 0 |
| OLYMPIA | OLYMPIA INDUSTRIES BHD | 107 | 0.10 | 0.10 - 0.105 | 0.105 | +0.005 | 5.00% | 68,100 |
| OMESTI | OMESTI BHD | 229 | 0.43 | 0.43 - 0.43 | 0.43 | -0.005 | 1.15% | 2,000 |
| OMH | OM HOLDINGS LTD | 0 | 2.20 | 2.20 - 2.41 | 2.41 | +0.21 | 9.55% | 31,900 |
| OPCOM | OPCOM HOLDINGS BHD | 197 | 0.815 | 0.815 - 0.855 | 0.855 | +0.04 | 4.91% | 11,762,700 |
| OPENSYS | OPENSYS M BHD | 190 | 0.42 | 0.415 - 0.425 | 0.425 | +0.01 | 2.41% | 225,800 |
| OPTIMAX | OPTIMAX HOLDINGS BERHAD | 362 | 1.33 | 1.33 - 1.34 | 1.34 | +0.01 | 0.75% | 20,500 |
| ORIENT | ORIENTAL HOLDINGS BHD | 3,170 | 5.11 | 5.11 - 5.11 | 5.11 | +0.01 | 0.20% | 1,000 |
| ORION | ORION IXL BHD | 39 | 0.045 | 0.045 - 0.045 | 0.045 | 0.00 | 0.00% | 150,000 |
| ORNA | ORNAPAPER BHD | 105 | 1.39 | 1.39 - 1.39 | 1.39 | -0.01 | 0.71% | 7,000 |
| OSK | OSK HOLDINGS BHD | 1,812 | 0.865 | 0.00 - 0.00 | 0.865 | 0.00 | 0.00% | 0 |
| OSKVI | OSK VENTURES INTERNATIONAL BHD | 88 | 0.445 | 0.00 - 0.00 | 0.445 | 0.00 | 0.00% | 0 |
| OVERSEA | OVERSEA ENTERPRISE BHD | 88 | 0.10 | 0.10 - 0.10 | 0.10 | +0.005 | 5.26% | 1,000 |
| OVH | OCEAN VANTAGE HOLDINGS BERHAD | 107 | 0.26 | 0.26 - 0.26 | 0.26 | 0.00 | 0.00% | 111,000 |
| OWG | ONLY WORLD GROUP HOLDINGS BHD | 198 | 0.495 | 0.49 - 0.50 | 0.495 | +0.015 | 3.13% | 3,739,400 |
287 
