| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.59 | 21.00 | 21.31 | 8.6K | -0.18 | | 0.83 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.49 | 21.20 | 21.20 | 33.4K | -0.26 | | 1.19 | |
| OHI | Omega Healthcare Investors | 47.75 | 46.94 | 47.63 | 868.5K | 0.25 | | 0.53 | |
| OIA | Invesco Muni Income Trust | 6.230 | 6.140 | 6.155 | 79.1K | -0.035 | | 0.57 | |
| OII | Oceaneering International | 39.41 | 35.32 | 39.40 | 918.7K | 3.11 | | 8.57 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.600 | 7.525 | 7.570 | 75.5K | 0.060 | | 0.80 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.65 | 16.46 | 16.55 | 1.4K | -0.02 | | 0.12 | |
| OPP-B | Rivernorth/Doubleline Strategic | 17.72 | 17.50 | 17.72 | 6.3K | 0.15 | | 0.88 | |
| OPTU | Optimum Communications Inc | 1.750 | 1.450 | 1.600 | 25.69M | -0.020 | | 1.23 | |
| ORC | Orchid Island Capital Inc | 6.905 | 6.795 | 6.860 | 2.62M | 0.055 | | 0.81 | |
| ORI | Old Republic International Corp | 40.74 | 39.90 | 40.02 | 424.7K | -0.28 | | 0.69 | |
| OSG | Overseas Shipholding Group Inc | 6.500 | 6.060 | 6.155 | 641.1K | -0.315 | | 4.87 | |
| OTA.U | Starlink AI Acquisition Corporation | 10.14 | 10.10 | 10.14 | 10.9K | 0.04 | | 0.35 | |
| OTF | Blue Owl Technology Finance Corp | 10.43 | 10.13 | 10.25 | 1.45M | 0.03 | | 0.29 | |
| OXY | Occidental Petroleum Corp | 51.75 | 50.37 | 51.22 | 4.71M | 0.12 | | 0.23 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 29.38 | 28.63 | 29.19 | 63.2K | -1.21 | | 3.98 | |