| OAK-A | Oaktree Cap Group Llc [Oak/Pa] | 21.16 | 20.58 | 20.76 | 11.1K | -0.25 | | 1.17 | |
| OAK-B | Brookfield Oaktree Holdings Llc [Oak/Pb] | 20.83 | 20.73 | 20.73 | 1.0K | -0.23 | | 1.10 | |
| OHI | Omega Healthcare Investors | 47.74 | 46.82 | 47.65 | 1.9M | 0.64 | | 1.36 | |
| OIA | Invesco Muni Income Trust | 6.170 | 6.120 | 6.150 | 62.6K | -0.030 | | 0.49 | |
| OII | Oceaneering International | 38.74 | 37.64 | 38.07 | 1.19M | 0.14 | | 0.37 | |
| OPP | Doubleline Strategic Opportunity Fund | 7.870 | 7.770 | 7.780 | 131.6K | -0.070 | | 0.89 | |
| OPP-A | Rivernorth/Doubleline Strategic | 16.77 | 16.63 | 16.77 | 1.9K | 0.09 | | 0.54 | |
| OPP-B | Rivernorth/Doubleline Strategic | 18.22 | 18.22 | 18.22 | 600 | 0.02 | | 0.11 | |
| OPTU | Optimum Communications Inc | 1.0950 | 0.9514 | 0.9516 | 3.83M | -0.1084 | | 10.23 | |
| ORC | Orchid Island Capital Inc | 7.040 | 6.950 | 6.960 | 3.78M | -0.060 | | 0.85 | |
| ORI | Old Republic International Corp | 39.47 | 38.67 | 39.18 | 948.8K | -0.04 | | 0.10 | |
| OSG | Overseas Shipholding Group Inc | 5.920 | 5.410 | 5.860 | 426.1K | 0.280 | | 5.03 | |
| OTF | Blue Owl Technology Finance Corp | 10.89 | 10.67 | 10.72 | 1.4M | -0.04 | | 0.37 | |
| OXY | Occidental Petroleum Corp | 56.42 | 55.17 | 56.27 | 10.63M | 1.13 | | 2.05 | |
| OXY.W | Occidental Petroleum Corp WT [Oxy/W/I] | 34.39 | 33.20 | 34.21 | 48.0K | 1.02 | | 3.07 | |