| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.84 | 21.44 | 21.84 | 9.5K | 0.05 | | 0.23 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.67 | 21.40 | 21.66 | 6.9K | 0.11 | | 0.51 | |
| OHI | Omega Healthcare Investors | 44.02 | 42.99 | 43.01 | 1.23M | -0.87 | | 1.98 | |
| OIA | Invesco Muni Income Trust | 6.200 | 6.142 | 6.200 | 145.5K | 0.020 | | 0.32 | |
| OII | Oceaneering International | 30.72 | 28.99 | 30.53 | 537.7K | 0.43 | | 1.43 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.900 | 7.855 | 7.880 | 74.5K | 0.010 | | 0.13 | |
| OPP-A | Rivernorth/Doubleline Strategic | 17.03 | 16.95 | 16.95 | 9.7K | -0.10 | | 0.56 | |
| OPP-B | Rivernorth/Doubleline Strategic | 19.01 | 18.80 | 19.00 | 2.3K | -0.03 | | 0.16 | |
| OPTU | Optimum Communications Inc | 1.700 | 1.525 | 1.600 | 1.9M | 0.070 | | 4.58 | |
| ORC | Orchid Island Capital Inc | 7.855 | 7.660 | 7.695 | 6.66M | -0.105 | | 1.35 | |
| ORI | Old Republic International Corp | 39.47 | 38.85 | 39.24 | 704.8K | 0.07 | | 0.18 | |
| OSG | Overseas Shipholding Group Inc | 5.790 | 5.590 | 5.700 | 318.3K | 0.030 | | 0.53 | |
| OTF | Blue Owl Technology Finance Corp | 13.55 | 12.83 | 13.14 | 2.26M | -0.19 | | 1.43 | |
| OXY | Occidental Petroleum Corp | 44.50 | 43.51 | 43.81 | 7.95M | -1.59 | | 3.49 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 22.55 | 21.84 | 21.84 | 65.1K | -1.69 | | 7.18 | |