| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.08 | 20.98 | 21.02 | 24.6K | 0.03 | | 0.14 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.00 | 20.63 | 20.82 | 18.5K | 0.02 | | 0.10 | |
| OHI | Omega Healthcare Investors | 47.10 | 46.40 | 46.78 | 1.54M | -0.28 | | 0.60 | |
| OII | Oceaneering International | 38.91 | 37.53 | 38.24 | 561.5K | -0.06 | | 0.16 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.700 | 7.620 | 7.655 | 80.6K | 0.010 | | 0.13 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.71 | 16.61 | 16.71 | 9.3K | 0.10 | | 0.60 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.58 | 18.45 | 18.50 | 1.1K | -0.11 | | 0.59 | |
| OPTU | Optimum Communications Inc | 0.6890 | 0.5832 | 0.6771 | 4.48M | 0.0536 | | 8.87 | |
| ORC | Orchid Island Capital Inc | 6.910 | 6.770 | 6.780 | 4.46M | -0.170 | | 2.45 | |
| ORI | Old Republic International Corp | 37.90 | 37.07 | 37.23 | 836.3K | -0.52 | | 1.38 | |
| OSG | Overseas Shipholding Group Inc | 5.710 | 5.450 | 5.480 | 295.9K | -0.040 | | 0.72 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.60 | 10.03 | 10.12 | 46.8K | 0.07 | | 0.70 | |
| OTF | Blue Owl Technology Finance Corp | 11.23 | 10.80 | 11.11 | 2.3M | 0.20 | | 1.83 | |
| OXY | Occidental Petroleum Corp | 57.39 | 56.03 | 56.67 | 6.92M | -0.69 | | 1.20 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 34.84 | 34.18 | 34.60 | 47.9K | -0.46 | | 1.31 | |