| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.05 | 20.88 | 21.01 | 3.5K | 0.11 | | 0.53 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.75 | 20.68 | 20.74 | 14.3K | -0.01 | | 0.05 | |
| OHI | Omega Healthcare Investors | 44.95 | 44.52 | 44.76 | 134.5K | 0.25 | | 0.56 | |
| OIA | Invesco Muni Income Trust | 6.080 | 6.020 | 6.060 | 58.9K | 0.030 | | 0.50 | |
| OII | Oceaneering International | 24.08 | 23.66 | 23.69 | 80.7K | -0.37 | | 1.54 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.880 | 7.790 | 7.860 | 32.9K | 0.060 | | 0.77 | |
| OPP-A | Rivernorth/Doubleline Strategic | 17.09 | 16.86 | 16.90 | 9.9K | -0.12 | | 0.71 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.76 | 18.46 | 18.54 | 5.6K | -0.06 | | 0.32 | |
| OPTU | Optimum Communications Inc | 1.770 | 1.690 | 1.710 | 1.22M | -0.030 | | 1.72 | |
| ORC | Orchid Island Capital Inc | 7.400 | 7.300 | 7.385 | 849.4K | 0.115 | | 1.58 | |
| ORI | Old Republic International Corp | 46.03 | 45.41 | 45.99 | 46.6K | 0.19 | | 0.41 | |
| OSG | Overseas Shipholding Group Inc | 8.600 | 8.410 | 8.580 | 28.7K | 0.130 | | 1.54 | |
| OTF | Blue Owl Technology Finance Corp | 14.03 | 13.89 | 14.02 | 162.8K | 0.12 | | 0.86 | |
| OXY | Occidental Petroleum Corp | 40.54 | 39.93 | 39.97 | 1.98M | -0.66 | | 1.61 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 19.00 | 17.40 | 18.62 | 182.2K | 1.40 | | 8.13 | |