| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.95 | 21.65 | 21.95 | 8.4K | 0.11 | | 0.50 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 21.89 | 21.42 | 21.87 | 29.3K | 0.21 | | 0.97 | |
| OHI | Omega Healthcare Investors | 43.17 | 42.25 | 42.91 | 1.32M | -0.11 | | 0.26 | |
| OIA | Invesco Muni Income Trust | 6.250 | 6.160 | 6.210 | 81.7K | 0.010 | | 0.16 | |
| OII | Oceaneering International | 31.78 | 30.32 | 31.40 | 508.8K | 0.87 | | 2.85 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.916 | 7.890 | 7.900 | 74.6K | 0.020 | | 0.25 | |
| OPP-A | Rivernorth/Doubleline Strategic | 17.11 | 16.85 | 16.85 | 5.4K | -0.10 | | 0.59 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.99 | 18.73 | 18.73 | 2.8K | -0.27 | | 1.42 | |
| OPTU | Optimum Communications Inc | 1.670 | 1.570 | 1.650 | 2.03M | 0.060 | | 3.77 | |
| ORC | Orchid Island Capital Inc | 7.860 | 7.645 | 7.820 | 6.96M | 0.130 | | 1.69 | |
| ORI | Old Republic International Corp | 40.42 | 39.06 | 40.20 | 990.8K | 0.97 | | 2.47 | |
| OSG | Overseas Shipholding Group Inc | 5.990 | 5.600 | 5.985 | 502.7K | 0.285 | | 5.00 | |
| OTF | Blue Owl Technology Finance Corp | 13.28 | 12.13 | 12.32 | 4.48M | -0.83 | | 6.31 | |
| OXY | Occidental Petroleum Corp | 45.37 | 43.31 | 45.25 | 8.11M | 1.45 | | 3.31 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 23.39 | 21.43 | 23.28 | 76.1K | 1.44 | | 6.59 | |