| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.77 | 21.40 | 21.50 | 6.8K | 0.11 | | 0.51 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.50 | 21.22 | 21.29 | 3.0K | -0.22 | | 1.02 | |
| OHI | Omega Healthcare Investors | 47.87 | 47.08 | 47.46 | 768.5K | -0.65 | | 1.35 | |
| OIA | Invesco Muni Income Trust | 6.380 | 6.335 | 6.360 | 129.0K | -0.040 | | 0.63 | |
| OII | Oceaneering International | 35.71 | 34.01 | 35.18 | 698.9K | -0.70 | | 1.94 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.890 | 7.820 | 7.870 | 80.6K | 0.020 | | 0.25 | |
| OPP-A | Rivernorth/Doubleline Strategic | 17.13 | 16.99 | 17.05 | 4.3K | 0.02 | | 0.12 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.86 | 18.70 | 18.78 | 2.3K | -0.12 | | 0.63 | |
| OPTU | Optimum Communications Inc | 1.505 | 1.375 | 1.500 | 1.5M | 0.040 | | 2.74 | |
| ORC | Orchid Island Capital Inc | 7.490 | 7.314 | 7.375 | 5.76M | -0.085 | | 1.14 | |
| ORI | Old Republic International Corp | 42.88 | 41.73 | 42.39 | 952.8K | -0.70 | | 1.61 | |
| OSG | Overseas Shipholding Group Inc | 5.660 | 5.360 | 5.580 | 362.3K | 0.020 | | 0.36 | |
| OTF | Blue Owl Technology Finance Corp | 11.94 | 11.39 | 11.80 | 1.96M | 0.16 | | 1.37 | |
| OXY | Occidental Petroleum Corp | 55.29 | 53.07 | 53.69 | 20.42M | -0.52 | | 0.96 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 33.50 | 31.46 | 32.16 | 230.4K | 1.11 | | 3.57 | |